QA catalogue for analysing library data

British Library     last data update: 2020-11-26     number of records: 18,787,911

Issues in MARC21 records

records without issues
with
 
0 (0.00%)
18,787,911 (100.00%)

excluding undefined field issues

records without issues
with
 
2,841,018 (15.12%)
15,946,893 (84.88%)
path message url instances records chart %
record level issues 11,067 4,308
 
0.02
undetectable type (15 variants) [+] 878 878
 
0.00
Leader Leader/06 (typeOfRecord): 'a', Leader/07 (bibliographicLevel): 'k' 344 344
 
0.00
Leader Leader/06 (typeOfRecord): ' ', Leader/07 (bibliographicLevel): ' ' 274 274
 
0.00
Leader Leader/06 (typeOfRecord): 'b', Leader/07 (bibliographicLevel): 'c' 105 105
 
0.00
Leader Leader/06 (typeOfRecord): 'a', Leader/07 (bibliographicLevel): 't' 81 81
 
0.00
Leader Leader/06 (typeOfRecord): ' ', Leader/07 (bibliographicLevel): 'm' 46 46
 
0.00
Leader Leader/06 (typeOfRecord): 'a', Leader/07 (bibliographicLevel): ' ' 14 14
 
0.00
Leader Leader/06 (typeOfRecord): 'a', Leader/07 (bibliographicLevel): 'u' 5 5
 
0.00
Leader Leader/06 (typeOfRecord): ' ', Leader/07 (bibliographicLevel): 'c' 2 2
 
0.00
Leader Leader/06 (typeOfRecord): 'a', Leader/07 (bibliographicLevel): 'n' 1 1
 
0.00
Leader Leader/06 (typeOfRecord): 'l', Leader/07 (bibliographicLevel): 'm' 1 1
 
0.00
Leader Leader/06 (typeOfRecord): '9', Leader/07 (bibliographicLevel): 'm' 1 1
 
0.00
Leader Leader/06 (typeOfRecord): 's', Leader/07 (bibliographicLevel): 'a' 1 1
 
0.00
Leader Leader/06 (typeOfRecord): 'b', Leader/07 (bibliographicLevel): 'm' 1 1
 
0.00
Leader Leader/06 (typeOfRecord): ' ', Leader/07 (bibliographicLevel): 's' 1 1
 
0.00
Leader Leader/06 (typeOfRecord): 'a', Leader/07 (bibliographicLevel): '1' 1 1
 
0.00
invalid linkage (184 variants) [+] 10,180 3,421
 
0.02
880$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 9,727 3,005
 
0.02
880 Unparseable reference: '245-02(3/r' 48 48
 
0.00
880$6 refers to field 796, which is not defined 27 23
 
0.00
880$6 refers to field 491, which is not defined 15 15
 
0.00
880 Unparseable reference: '650-0' 15 15
 
0.00
880 Unparseable reference: '245-0' 12 12
 
0.00
880$6 refers to field 261, which is not defined 12 12
 
0.00
880 Unparseable reference: '700-0' 16 12
 
0.00
880 Unparseable reference: '100-1' 9 9
 
0.00
880 Unparseable reference: '2450-01' 8 8
 
0.00
880 Unparseable reference: '264-0' 8 8
 
0.00
880 Unparseable reference: '246-0' 8 7
 
0.00
880 Unparseable reference: '2450-02' 7 7
 
0.00
880 Unparseable reference: '71005' 7 7
 
0.00
880$6 refers to field 265, which is not defined 6 6
 
0.00
880 Unparseable reference: '245-01(S' 6 6
 
0.00
880 Unparseable reference: '245' 5 5
 
0.00
880 Unparseable reference: '71007' 5 5
 
0.00
880 Unparseable reference: '245-010//r' 4 4
 
0.00
880 Unparseable reference: '71004' 4 4
 
0.00
880 Unparseable reference: '710' 4 4
 
0.00
880 Unparseable reference: '100-0' 4 4
 
0.00
880 Unparseable reference: '246-0//r' 4 4
 
0.00
880 Unparseable reference: '700-7' 3 3
 
0.00
880$6 refers to field 262, which is not defined 3 3
 
0.00
880 Unparseable reference: '7100-05' 3 3
 
0.00
880 Unparseable reference: '7100-03' 3 3
 
0.00
880 Unparseable reference: '246-021//r' 3 3
 
0.00
880 Unparseable reference: '245-1' 3 3
 
0.00
880 Unparseable reference: '490-1' 3 3
 
0.00
880 Unparseable reference: '490-0' 3 3
 
0.00
880$6 refers to field 797, which is not defined 3 3
 
0.00
880 Unparseable reference: '505-0' 3 3
 
0.00
880 Unparseable reference: '700-5' 3 3
 
0.00
880$6 refers to field 750, which is not defined 2 2
 
0.00
880 Unparseable reference: '100-01(3/r' 2 2
 
0.00
880 Unparseable reference: '100-01(2/r' 2 2
 
0.00
880 Unparseable reference: '240-0//r' 2 2
 
0.00
880 Unparseable reference: '7100-06' 2 2
 
0.00
880 Unparseable reference: '7100-04' 2 2
 
0.00
880 Unparseable reference: '246-3' 2 2
 
0.00
880 Unparseable reference: '710-4' 2 2
 
0.00
880 Unparseable reference: '710-9' 2 2
 
0.00
880 Unparseable reference: '245-2' 2 2
 
0.00
880 Unparseable reference: '246-03(2/r' 2 2
 
0.00
880 Unparseable reference: '246' 2 2
 
0.00
880 Unparseable reference: '245-021' 2 2
 
0.00
880 Unparseable reference: '24501' 2 2
 
0.00
880 Unparseable reference: '490-5' 2 2
 
0.00
880 Unparseable reference: '264-003' 2 2
 
0.00
880$6 refers to field 404, which is not defined 2 2
 
0.00
880 Unparseable reference: '264-4' 2 2
 
0.00
880 Unparseable reference: '264-2' 2 2
 
0.00
880 Unparseable reference: '600-0' 2 2
 
0.00
880 Unparseable reference: '26402' 2 2
 
0.00
880$6 refers to field 112, which is not defined 2 2
 
0.00
880 Unparseable reference: '2640-02' 2 2
 
0.00
880 Unparseable reference: '650-000' 2 2
 
0.00
880 Unparseable reference: '650' 2 2
 
0.00
880$6 refers to field 269, which is not defined 2 2
 
0.00
880 Unparseable reference: '710-3//r' 2 2
 
0.00
880 Unparseable reference: '100' 2 2
 
0.00
880 Unparseable reference: '830-0' 2 2
 
0.00
880 Unparseable reference: '6245-01' 2 2
 
0.00
880 Unparseable reference: '245-01(2/r' 2 2
 
0.00
880$6 refers to field 699, which is not defined 4 2
 
0.00
880 Unparseable reference: '700-9' 1 1
 
0.00
880 Unparseable reference: '50-03' 1 1
 
0.00
880$6 refers to field 267, which is not defined 1 1
 
0.00
880 Unparseable reference: '700-011' 1 1
 
0.00
880 Unparseable reference: '700-010' 1 1
 
0.00
880 Unparseable reference: '700-034//r' 1 1
 
0.00
880 Unparseable reference: '710-047' 1 1
 
0.00
880 Unparseable reference: '130-0' 1 1
 
0.00
880 Unparseable reference: '7100-07' 1 1
 
0.00
880 Unparseable reference: '130-1' 1 1
 
0.00
880 Unparseable reference: '74-04//r' 1 1
 
0.00
880 Unparseable reference: 'r' 1 1
 
0.00
880 Unparseable reference: '700-05(2/r' 1 1
 
0.00
880 Unparseable reference: '490-013' 1 1
 
0.00
880$6 refers to field 234, which is not defined 1 1
 
0.00
880 Unparseable reference: '245-002' 1 1
 
0.00
880 Unparseable reference: '710-0' 1 1
 
0.00
880 Unparseable reference: '9245-01' 1 1
 
0.00
880$6 refers to field 840, which is not defined 1 1
 
0.00
880 Unparseable reference: '710-3' 1 1
 
0.00
880 Unparseable reference: '100-0-1' 1 1
 
0.00
880 Unparseable reference: '7106700-04' 1 1
 
0.00
880 Unparseable reference: '710-5' 1 1
 
0.00
880 Unparseable reference: '740-6/(2/r' 1 1
 
0.00
880$6 refers to field 449, which is not defined 1 1
 
0.00
880 Unparseable reference: '490-023' 1 1
 
0.00
880 Unparseable reference: '830-054' 1 1
 
0.00
880 Unparseable reference: '49-04' 1 1
 
0.00
880 Unparseable reference: '740-010//r' 1 1
 
0.00
880 Unparseable reference: '245-013' 1 1
 
0.00
880 Unparseable reference: '500-0' 1 1
 
0.00
880 Unparseable reference: '740-9//r' 1 1
 
0.00
880$6 refers to field 680, which is not defined 1 1
 
0.00
880 Unparseable reference: '505-001' 1 1
 
0.00
more
ambiguous linkage (1 variants) [+] 9 9
 
0.00
880$6 There are multiple $6 9 9
 
0.00
control field level issues 14,246,820 8,596,597
 
45.76
invalid code (830 variants) [+] 8,503 4,599
 
0.02
006/16-17 (tag006map16) '0' in ' 0' 1,117 1,117
 
0.01
006/01-04 (tag006map01) 'x' in ' x ' 978 978
 
0.01
008/24-29 (tag008music24) 'n' in '||n |' 573 573
 
0.00
006/01-04 (tag006book01) 's' in 'sg||' 462 462
 
0.00
006/01-04 (tag006book01) 'n' in 'nnn ' 786 262
 
0.00
008/18-21 (tag008book18) 'r' in 'ar ' 216 216
 
0.00
006/01-04 (tag006book01) 'n' in 'nnnn' 528 132
 
0.00
006/01-04 (tag006map01) 'r' in 'ar ' 112 112
 
0.00
008/24-29 (tag008music24) '0' in ' 0' 98 98
 
0.00
008/33-34 (tag008map33) '0' in '0 ' 92 92
 
0.00
008/24-27 (tag008book24) '0' in ' 00' 174 87
 
0.00
006/01-04 (tag006book01) 'n' in '|||n' 78 78
 
0.00
008/30-31 (tag008music30) '0' in '00' 136 68
 
0.00
006/01-04 (tag006book01) 'u' in 'uunn' 130 65
 
0.00
006/01-04 (tag006book01) 'n' in 'uunn' 130 65
 
0.00
006/01-04 (tag006book01) 'C' in 'C' 64 64
 
0.00
008/18-21 (tag008book18) '0' in '000 ' 165 55
 
0.00
006/07-10 (tag006book07) 'h' in ' h ' 50 50
 
0.00
006/16-17 (tag006map16) '0' in '0 ' 42 42
 
0.00
006/01-04 (tag006book01) '-' in '--- ' 114 38
 
0.00
008/18-21 (tag008book18) 'u' in 'uu ' 66 33
 
0.00
008/30-31 (tag008music30) '0' in '0|' 33 33
 
0.00
008/33-34 (tag008map33) '|' in 'e|' 32 32
 
0.00
008/18-21 (tag008book18) 'n' in 'nnn ' 87 29
 
0.00
006/01-04 (tag006book01) 'n' in 'fmnn' 50 25
 
0.00
006/01-04 (tag006map01) 'r' in 'gr ' 22 22
 
0.00
006/01-04 (tag006book01) 'n' in 'zzn ' 20 20
 
0.00
006/01-04 (tag006book01) 'z' in 'zzn ' 40 20
 
0.00
008/18-21 (tag008book18) 'n' in 'nnnn' 80 20
 
0.00
008/18-21 (tag008book18) 'q' in 'oq ' 19 19
 
0.00
006/01-04 (tag006book01) 'H' in 'Hm ' 17 17
 
0.00
008/18-21 (tag008book18) 'u' in 'uu p' 32 16
 
0.00
006/01-04 (tag006book01) 'n' in 'sgn ' 15 15
 
0.00
006/01-04 (tag006book01) 's' in 'sgn ' 15 15
 
0.00
008/18-21 (tag008book18) 'r' in 'aro ' 15 15
 
0.00
008/33-34 (tag008map33) '|' in '| ' 15 15
 
0.00
008/18-21 (tag008book18) 'r' in 'ar p' 15 15
 
0.00
006/01-04 (tag006book01) 's' in 'sgnn' 14 14
 
0.00
006/01-04 (tag006book01) 'n' in 'sgnn' 28 14
 
0.00
008/24-29 (tag008music24) 'n' in ' n' 14 14
 
0.00
006/01-04 (tag006book01) 'n' in 'munn' 28 14
 
0.00
006/01-04 (tag006book01) 'u' in 'munn' 14 14
 
0.00
006/01-04 (tag006book01) 'n' in 'zznn' 26 13
 
0.00
006/01-04 (tag006book01) 'z' in 'zznn' 26 13
 
0.00
008/24-27 (tag008book24) 'h' in 'h ' 13 13
 
0.00
006/07-12 (tag006music07) '0' in ' 0' 12 12
 
0.00
006/01-04 (tag006map01) 'h' in 'hr ' 12 12
 
0.00
006/01-04 (tag006map01) 'r' in 'hr ' 12 12
 
0.00
008/18-21 (tag008book18) 'r' in 'mr p' 10 10
 
0.00
008/18-21 (tag008map18) 'n' in 'nnn ' 30 10
 
0.00
006/16-17 (tag006map16) 'a' in 'a0' 10 10
 
0.00
006/01-04 (tag006book01) 'n' in '||n ' 10 10
 
0.00
006/16-17 (tag006map16) '0' in 'a0' 10 10
 
0.00
008/18-21 (tag008book18) 'u' in 'uuu ' 27 9
 
0.00
006/01-04 (tag006book01) 'n' in 'fmn ' 9 9
 
0.00
006/01-04 (tag006book01) 'z' in 'zzz ' 27 9
 
0.00
006/13-14 (tag006music13) '0' in '00' 18 9
 
0.00
006/01-04 (tag006book01) '0' in '060 ' 16 8
 
0.00
006/07-12 (tag006music07) 'u' in ' u ' 8 8
 
0.00
008/24-27 (tag008book24) '0' in '0 ' 8 8
 
0.00
006/01-04 (tag006book01) '6' in '060 ' 8 8
 
0.00
006/01-04 (tag006book01) 'u' in 'uun ' 14 7
 
0.00
006/08-10 (tag006continuing08) 'j' in ' j ' 7 7
 
0.00
006/01-04 (tag006book01) 'u' in 'uuu ' 21 7
 
0.00
006/01-04 (tag006book01) 'n' in 'ppnn' 14 7
 
0.00
008/18-21 (tag008book18) 'q' in 'q ' 7 7
 
0.00
006/01-04 (tag006book01) '3' in '030 ' 7 7
 
0.00
006/01-04 (tag006book01) '0' in '030 ' 14 7
 
0.00
006/01-04 (tag006book01) 'n' in 'uun ' 7 7
 
0.00
008/18-21 (tag008book18) 'r' in 'fr p' 7 7
 
0.00
006/01-04 (tag006book01) '0' in '050 ' 12 6
 
0.00
006/01-04 (tag006book01) '5' in '050 ' 6 6
 
0.00
008/18-21 (tag008book18) 'z' in 'fmz ' 6 6
 
0.00
008/25-27 (tag008continuing25) 'j' in ' j ' 6 6
 
0.00
008/18-21 (tag008book18) 'r' in 'arb ' 6 6
 
0.00
008/30-31 (tag008music30) '1' in '01' 6 6
 
0.00
008/18-21 (tag008book18) 'r' in 'arc ' 6 6
 
0.00
008/18-21 (tag008book18) '>' in '> ' 6 6
 
0.00
008/30-31 (tag008music30) '0' in '01' 6 6
 
0.00
006/01-04 (tag006book01) 'F' in 'F' 6 6
 
0.00
006/01-04 (tag006book01) 'n' in '||nn' 12 6
 
0.00
006/01-04 (tag006book01) 'A' in 'Am ' 5 5
 
0.00
006/01-04 (tag006book01) '0' in '042 ' 5 5
 
0.00
008/18-21 (tag008book18) 'q' in 'aq ' 5 5
 
0.00
006/01-04 (tag006book01) 'u' in 'fmu ' 5 5
 
0.00
008/18-21 (tag008book18) 'q' in 'qr p' 5 5
 
0.00
008/18-21 (tag008book18) '1' in '1 ' 5 5
 
0.00
006/01-04 (tag006book01) '2' in '042 ' 5 5
 
0.00
006/01-04 (tag006book01) '0' in '055 ' 5 5
 
0.00
006/01-04 (tag006book01) '4' in '042 ' 5 5
 
0.00
008/24-29 (tag008music24) '1' in ' 1' 5 5
 
0.00
006/01-04 (tag006book01) '0' in '000 ' 15 5
 
0.00
006/01-04 (tag006book01) 'n' in 'opnn' 10 5
 
0.00
006/01-04 (tag006book01) '5' in '055 ' 10 5
 
0.00
008/18-21 (tag008book18) 'q' in 'hoq ' 5 5
 
0.00
006/01-04 (tag006book01) 'C' in 'Cm ' 5 5
 
0.00
008/18-21 (tag008book18) '4' in '4 ' 5 5
 
0.00
006/01-04 (tag006book01) 'z' in 'fmz ' 5 5
 
0.00
006/01-04 (tag006book01) 'n' in 'jznn' 10 5
 
0.00
008/18-21 (tag008book18) '0' in '052 ' 5 5
 
0.00
more
invalid value (752 variants) [+] 14,238,317 8,595,948
 
45.75
Leader/05 (leader05) " " 6,999,804 6,999,804
 
37.26
006/12 (tag006book12) " " 1,444,500 1,444,500
 
7.69
006/14 (tag006book14) " " 1,444,453 1,444,453
 
7.69
006/13 (tag006book13) " " 1,444,240 1,444,240
 
7.69
006/16 (tag006book16) " " 1,443,940 1,443,940
 
7.69
008/00-05 (tag008all00) Invalid content: ' '. Text ' ' could not be parsed at index 0 364,993 364,993
 
1.94
008/31 (tag008book31) " " 144,536 144,536
 
0.77
008/29 (tag008book29) " " 132,749 132,749
 
0.71
008/33 (tag008book33) " " 131,495 131,495
 
0.70
006/02 (tag006continuing02) " " 110,976 110,976
 
0.59
006/17 (tag006continuing17) " " 83,127 83,127
 
0.44
006/12 (tag006continuing12) " " 82,876 82,876
 
0.44
008/19 (tag008continuing19) " " 65,604 65,604
 
0.35
006/03 (tag006music03) " " 57,607 57,607
 
0.31
006/01-02 (tag006music01) " " 56,608 56,608
 
0.30
008/30 (tag008book30) " " 34,842 34,842
 
0.19
006/02 (tag006continuing02) c 20,032 20,032
 
0.11
008/25 (tag008map25) " " 12,003 12,003
 
0.06
008/31 (tag008map31) " " 11,837 11,837
 
0.06
008/00-05 (tag008all00) Invalid content: '080003'. Text '080003' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 7,752 7,752
 
0.04
006/08 (tag006map08) " " 7,560 7,560
 
0.04
006/14 (tag006map14) " " 7,481 7,481
 
0.04
008/34 (tag008continuing34) " " 7,461 7,461
 
0.04
008/33 (tag008continuing33) 0 6,801 6,801
 
0.04
006/02 (tag006continuing02) b 6,733 6,733
 
0.04
008/00-05 (tag008all00) Invalid content: '080004'. Text '080004' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 5,616 5,616
 
0.03
008/00-05 (tag008all00) Invalid content: '080002'. Text '080002' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 4,983 4,983
 
0.03
008/00-05 (tag008all00) Invalid content: '080007'. Text '080007' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 4,980 4,980
 
0.03
008/29 (tag008continuing29) " " 4,447 4,447
 
0.02
006/05-06 (tag006map05) o 3,880 3,880
 
0.02
008/00-05 (tag008all00) Invalid content: '080008'. Text '080008' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 3,558 3,558
 
0.02
008/00-05 (tag008all00) Invalid content: '080005'. Text '080005' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 3,417 3,417
 
0.02
008/20 (tag008music20) " " 3,132 3,132
 
0.02
008/00-05 (tag008all00) Invalid content: '070022'. Text '070022' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 3,065 3,065
 
0.02
008/00-05 (tag008all00) Invalid content: '070004'. Text '070004' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,858 2,858
 
0.02
008/18-19 (tag008music18) " " 2,666 2,666
 
0.01
008/00-05 (tag008all00) Invalid content: '070024'. Text '070024' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,464 2,464
 
0.01
008/00-05 (tag008all00) Invalid content: '070008'. Text '070008' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,329 2,329
 
0.01
008/00-05 (tag008all00) Invalid content: '070027'. Text '070027' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,290 2,290
 
0.01
008/00-05 (tag008all00) Invalid content: '070003'. Text '070003' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,206 2,206
 
0.01
008/00-05 (tag008all00) Invalid content: '070010'. Text '070010' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,135 2,135
 
0.01
008/26 (tag008computer26) " " 2,051 2,051
 
0.01
008/00-05 (tag008all00) Invalid content: '070029'. Text '070029' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 2,028 2,028
 
0.01
008/00-05 (tag008all00) Invalid content: '070011'. Text '070011' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,941 1,941
 
0.01
008/00-05 (tag008all00) Invalid content: '070030'. Text '070030' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,933 1,933
 
0.01
008/23 (tag008computer23) s 1,926 1,926
 
0.01
008/00-05 (tag008all00) Invalid content: '070009'. Text '070009' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,797 1,797
 
0.01
Leader/17 (leader17) M 1,791 1,791
 
0.01
008/00-05 (tag008all00) Invalid content: '||||||'. Text '||||||' could not be parsed at index 0 1,766 1,766
 
0.01
008/00-05 (tag008all00) Invalid content: '070006'. Text '070006' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,653 1,653
 
0.01
008/00-05 (tag008all00) Invalid content: '070005'. Text '070005' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,500 1,500
 
0.01
008/00-05 (tag008all00) Invalid content: '070028'. Text '070028' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,391 1,391
 
0.01
008/00-05 (tag008all00) Invalid content: '070018'. Text '070018' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,318 1,318
 
0.01
008/00-05 (tag008all00) Invalid content: '070012'. Text '070012' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,314 1,314
 
0.01
008/00-05 (tag008all00) Invalid content: '000000'. Text '000000' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,288 1,288
 
0.01
008/34 (tag008visual34) " " 1,214 1,214
 
0.01
006/12 (tag006map12) 0 1,172 1,172
 
0.01
008/00-05 (tag008all00) Invalid content: '070023'. Text '070023' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,141 1,141
 
0.01
008/00-05 (tag008all00) Invalid content: '070017'. Text '070017' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 1,029 1,029
 
0.01
006/05 (tag006continuing05) j 887 887
 
0.00
008/00-05 (tag008all00) Invalid content: '070025'. Text '070025' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 869 869
 
0.00
006/17 (tag006visual17) " " 860 860
 
0.00
Leader/17 (leader17) I 857 857
 
0.00
006/01-03 (tag006visual01) " " 847 847
 
0.00
006/16 (tag006visual16) " " 845 845
 
0.00
008/00-05 (tag008all00) Invalid content: '070002'. Text '070002' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 834 834
 
0.00
008/00-05 (tag008all00) Invalid content: '070013'. Text '070013' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 832 832
 
0.00
008/39 (tag008all39) e 830 830
 
0.00
008/33 (tag008book33) c 748 748
 
0.00
007/06-08 (tag007electro06) " " 722 722
 
0.00
008/00-05 (tag008all00) Invalid content: '070031'. Text '070031' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 681 681
 
0.00
006/16 (tag006continuing16) 0 636 636
 
0.00
006/16 (tag006continuing16) p 629 629
 
0.00
008/18-19 (tag008music18) o 573 573
 
0.00
006/01-02 (tag006music01) h 565 565
 
0.00
006/16 (tag006continuing16) m 434 434
 
0.00
008/00-05 (tag008all00) Invalid content: '070019'. Text '070019' could not be parsed: Invalid value for MonthOfYear (valid values 1 - 12): 0 406 406
 
0.00
008/34 (tag008book34) 0 373 373
 
0.00
008/00-05 (tag008all00) Invalid content: '01008 '. Text '01008 ' could not be parsed at index 4 372 372
 
0.00
Leader/07 (leader07) k 344 344
 
0.00
007/13 (tag007electro13) " " 343 343
 
0.00
007/12 (tag007electro12) " " 342 342
 
0.00
007/01 (tag007electro01) " " 339 339
 
0.00
007/09 (tag007electro09) " " 336 336
 
0.00
007/10 (tag007electro10) " " 336 336
 
0.00
007/11 (tag007electro11) " " 336 336
 
0.00
Leader/06 (leader06) " " 323 323
 
0.00
006/16 (tag006book16) n 303 303
 
0.00
Leader/19 (leader19) r 296 296
 
0.00
Leader/07 (leader07) " " 294 294
 
0.00
006/16 (tag006book16) v 285 285
 
0.00
Leader/18 (leader18) p 267 267
 
0.00
006/02 (tag006continuing02) e 252 252
 
0.00
006/17 (tag006book17) l 231 231
 
0.00
006/02 (tag006continuing02) h 224 224
 
0.00
006/01-03 (tag006visual01) a 210 210
 
0.00
006/01-02 (tag006music01) a 198 198
 
0.00
008/06 (tag008all06) " " 189 189
 
0.00
008/18-20 (tag008visual18) " " 180 180
 
0.00
Leader/17 (leader17) K 175 175
 
0.00
more
data field level issues 154,315,439 18,787,911
 
100.00
missing reference subfield (880$6) (1 variants) [+] 1,976 887
 
0.00
880 $6 1,976 887
 
0.00
repetition of non-repeatable field (89 variants) [+] 2,883,068 2,882,325
 
15.34
019 there are 2 instances 1,514,828 1,514,828
 
8.06
019 there are 3 instances 1,083,113 1,083,113
 
5.76
019 there are 4 instances 147,372 147,372
 
0.78
019 there are 5 instances 120,114 120,114
 
0.64
019 there are 6 instances 4,778 4,778
 
0.03
LAS there are 2 instances 3,695 3,695
 
0.02
042 there are 2 instances 2,909 2,909
 
0.02
019 there are 7 instances 2,102 2,102
 
0.01
043 there are 2 instances 948 948
 
0.01
FIN there are 2 instances 859 859
 
0.00
040 there are 2 instances 356 356
 
0.00
019 there are 8 instances 327 327
 
0.00
310 there are 2 instances 313 313
 
0.00
975 there are 2 instances 253 253
 
0.00
039 there are 2 instances 200 200
 
0.00
916 there are 2 instances 152 152
 
0.00
100 there are 2 instances 77 77
 
0.00
019 there are 9 instances 69 69
 
0.00
010 there are 2 instances 58 58
 
0.00
019 there are 10 instances 50 50
 
0.00
091 there are 2 instances 49 49
 
0.00
240 there are 2 instances 41 41
 
0.00
019 there are 12 instances 27 27
 
0.00
BUF there are 2 instances 26 26
 
0.00
LET there are 2 instances 25 25
 
0.00
245 there are 2 instances 25 25
 
0.00
019 there are 11 instances 25 25
 
0.00
ONX there are 2 instances 25 25
 
0.00
043 there are 3 instances 21 21
 
0.00
CNF there are 2 instances 20 20
 
0.00
FFP there are 2 instances 14 14
 
0.00
019 there are 15 instances 12 12
 
0.00
EXP there are 2 instances 12 12
 
0.00
046 there are 2 instances 11 11
 
0.00
TOC there are 2 instances 10 10
 
0.00
019 there are 14 instances 10 10
 
0.00
019 there are 13 instances 8 8
 
0.00
263 there are 2 instances 7 7
 
0.00
100 there are 3 instances 7 7
 
0.00
110 there are 2 instances 7 7
 
0.00
019 there are 18 instances 6 6
 
0.00
MNI there are 2 instances 6 6
 
0.00
MIS there are 2 instances 6 6
 
0.00
019 there are 17 instances 6 6
 
0.00
019 there are 21 instances 6 6
 
0.00
240 there are 3 instances 5 5
 
0.00
039 there are 3 instances 5 5
 
0.00
019 there are 16 instances 5 5
 
0.00
019 there are 20 instances 4 4
 
0.00
043 there are 4 instances 4 4
 
0.00
019 there are 24 instances 3 3
 
0.00
019 there are 19 instances 3 3
 
0.00
045 there are 2 instances 3 3
 
0.00
100 there are 7 instances 3 3
 
0.00
040 there are 3 instances 3 3
 
0.00
954 there are 2 instances 3 3
 
0.00
019 there are 26 instances 2 2
 
0.00
980 there are 2 instances 2 2
 
0.00
019 there are 22 instances 2 2
 
0.00
CNF there are 3 instances 2 2
 
0.00
010 there are 4 instances 2 2
 
0.00
019 there are 25 instances 2 2
 
0.00
310 there are 3 instances 2 2
 
0.00
019 there are 28 instances 2 2
 
0.00
916 there are 3 instances 2 2
 
0.00
UNO there are 2 instances 1 1
 
0.00
240 there are 4 instances 1 1
 
0.00
976 there are 2 instances 1 1
 
0.00
NID there are 6 instances 1 1
 
0.00
019 there are 27 instances 1 1
 
0.00
019 there are 65 instances 1 1
 
0.00
039 there are 4 instances 1 1
 
0.00
019 there are 31 instances 1 1
 
0.00
044 there are 2 instances 1 1
 
0.00
042 there are 4 instances 1 1
 
0.00
100 there are 6 instances 1 1
 
0.00
243 there are 3 instances 1 1
 
0.00
019 there are 47 instances 1 1
 
0.00
DGM there are 2 instances 1 1
 
0.00
019 there are 38 instances 1 1
 
0.00
130 there are 3 instances 1 1
 
0.00
975 there are 3 instances 1 1
 
0.00
091 there are 3 instances 1 1
 
0.00
010 there are 8 instances 1 1
 
0.00
039 there are 6 instances 1 1
 
0.00
CNF there are 6 instances 1 1
 
0.00
091 there are 6 instances 1 1
 
0.00
019 there are 33 instances 1 1
 
0.00
043 there are 5 instances 1 1
 
0.00
undefined field (229 variants) [+] 151,430,395 18,787,911
 
100.00
CAT CAT 121,348,604 18,787,911
 
100.00
FMT FMT 18,787,754 18,787,745
 
100.00
TCO TCO 1,555,297 1,547,674
 
8.24
ACF ACF 7,541,509 1,180,222
 
6.28
LKR LKR 1,096,581 959,626
 
5.11
SID SID 665,533 659,251
 
3.51
958 958 239,380 230,400
 
1.23
889 889 171,461 171,461
 
0.91
350 350 11,421 11,421
 
0.06
948 948 3,590 3,590
 
0.02
MUL MUL 1,849 1,849
 
0.01
519 519 1,886 1,816
 
0.01
049 049 1,786 1,745
 
0.01
906 906 488 487
 
0.00
925 925 436 436
 
0.00
269 269 357 357
 
0.00
999 999 354 351
 
0.00
923 923 290 288
 
0.00
840 840 190 188
 
0.00
761 761 185 180
 
0.00
SMS SMS 170 170
 
0.00
435 435 103 103
 
0.00
STA STA 74 74
 
0.00
910 910 109 51
 
0.00
PST PST 59 50
 
0.00
265 265 44 44
 
0.00
741 741 61 44
 
0.00
699 699 58 42
 
0.00
991 991 43 42
 
0.00
593 593 41 41
 
0.00
900 900 56 40
 
0.00
987 987 29 29
 
0.00
503 503 26 26
 
0.00
299 299 24 24
 
0.00
922 922 23 23
 
0.00
652 652 23 23
 
0.00
ITM ITM 21 21
 
0.00
097 097 19 19
 
0.00
021 021 16 16
 
0.00
888 888 14 14
 
0.00
890 890 13 13
 
0.00
098 098 12 12
 
0.00
X01 X01 11 11
 
0.00
230 230 11 11
 
0.00
743 743 9 9
 
0.00
STS STS 8 8
 
0.00
589 589 7 7
 
0.00
745 745 9 7
 
0.00
491 491 6 6
 
0.00
AUK AUK 5 5
 
0.00
920 920 5 5
 
0.00
AYX AYX 5 5
 
0.00
LOC LOC 7 5
 
0.00
670 670 5 5
 
0.00
841 841 15 5
 
0.00
863 863 10 5
 
0.00
853 853 10 5
 
0.00
SBL SBL 7 5
 
0.00
956 956 5 5
 
0.00
251 251 5 5
 
0.00
919 919 14 4
 
0.00
151 151 4 4
 
0.00
620 620 4 4
 
0.00
691 691 5 4
 
0.00
560 560 4 4
 
0.00
984 984 4 4
 
0.00
986 986 4 4
 
0.00
315 315 3 3
 
0.00
659 659 3 3
 
0.00
AAW AAW 3 3
 
0.00
326 326 3 3
 
0.00
981 981 3 3
 
0.00
BOO BOO 3 3
 
0.00
640 640 3 3
 
0.00
236 236 3 3
 
0.00
953 953 3 3
 
0.00
601 601 3 3
 
0.00
742 742 4 3
 
0.00
TEM TEM 3 3
 
0.00
531 531 3 3
 
0.00
854 854 3 3
 
0.00
1X0 1X0 3 3
 
0.00
261 261 3 3
 
0.00
150 150 3 3
 
0.00
120 120 3 3
 
0.00
DSC DSC 2 2
 
0.00
I42 I42 2 2
 
0.00
606 606 2 2
 
0.00
262 262 2 2
 
0.00
930 930 2 2
 
0.00
112 112 2 2
 
0.00
YYY YYY 2 2
 
0.00
XXX XXX 2 2
 
0.00
205 205 2 2
 
0.00
820 820 2 2
 
0.00
881 881 2 2
 
0.00
I36 I36 2 2
 
0.00
Y00 Y00 2 2
 
0.00
701 701 2 2
 
0.00
712 712 2 2
 
0.00
more
indicator level issues 18,550,660 13,140,455
 
69.94
obsolete value (25 variants) [+] 137,394 77,948
 
0.41
082$ind1 " " 56,725 56,700
 
0.30
260$ind1 0 41,073 41,073
 
0.22
050$ind2 " " 33,837 33,833
 
0.18
060$ind2 " " 1,465 1,453
 
0.01
740$ind2 1 1,561 1,432
 
0.01
880->260$ind1 1 816 816
 
0.00
740$ind1 " " 754 729
 
0.00
600$ind1 2 491 469
 
0.00
260$ind1 1 123 123
 
0.00
880->260$ind1 0 121 121
 
0.00
880->740$ind1 " " 111 80
 
0.00
880->740$ind2 1 90 74
 
0.00
082$ind1 2 54 54
 
0.00
740$ind2 0 57 50
 
0.00
880->740$ind2 0 37 34
 
0.00
880->240$ind1 3 23 21
 
0.00
880->600$ind1 2 28 17
 
0.00
072$ind2 " " 20 16
 
0.00
880->740$ind2 3 2 2
 
0.00
052$ind1 0 1 1
 
0.00
535$ind1 0 1 1
 
0.00
880->050$ind2 " " 1 1
 
0.00
050$ind2 2 1 1
 
0.00
050$ind2 1 1 1
 
0.00
240$ind1 2 1 1
 
0.00
non-empty indicator (330 variants) [+] 18,069,478 12,898,830
 
68.65
019$ind1 x 4,627,601 4,621,756
 
24.60
019$ind1 1 2,556,796 2,552,136
 
13.58
019$ind1 y 2,183,812 2,177,356
 
11.59
019$ind1 9 2,180,570 2,175,697
 
11.58
019$ind1 a 1,821,297 1,810,278
 
9.64
100$ind2 0 731,613 731,613
 
3.89
019$ind1 d 617,587 616,244
 
3.28
019$ind1 u 588,994 586,083
 
3.12
019$ind1 c 440,131 438,111
 
2.33
019$ind1 0 376,036 375,464
 
2.00
019$ind1 8 367,736 367,364
 
1.96
019$ind1 g 318,482 317,358
 
1.69
019$ind1 3 281,708 281,456
 
1.50
019$ind1 2 269,720 269,117
 
1.43
019$ind1 4 197,023 196,820
 
1.05
019$ind1 m 124,287 123,461
 
0.66
019$ind1 o 74,408 73,747
 
0.39
019$ind1 n 53,246 53,218
 
0.28
019$ind1 r 48,171 48,058
 
0.26
110$ind2 0 38,206 38,205
 
0.20
019$ind1 t 32,074 32,073
 
0.17
019$ind1 s 32,014 31,754
 
0.17
019$ind1 e 20,636 20,632
 
0.11
880->490$ind2 0 16,327 16,228
 
0.09
985$ind1 0 15,463 15,090
 
0.08
985$ind2 0 15,464 15,090
 
0.08
019$ind1 h 5,644 5,640
 
0.03
985$ind2 1 3,879 3,719
 
0.02
985$ind1 4 3,868 3,709
 
0.02
880$ind1 1 7,474 3,556
 
0.02
880$ind2 0 3,243 2,834
 
0.02
490$ind2 0 2,167 2,153
 
0.01
880$ind2 1 1,769 1,744
 
0.01
880$ind1 0 1,207 1,039
 
0.01
800$ind2 0 936 932
 
0.00
880->830$ind1 0 863 853
 
0.00
810$ind2 0 781 752
 
0.00
880$ind2 2 665 651
 
0.00
880$ind1 2 631 533
 
0.00
362$ind2 0 387 387
 
0.00
880->880$ind1 1 323 310
 
0.00
880$ind2 4 336 305
 
0.00
597$ind1 0 349 285
 
0.00
597$ind2 0 349 285
 
0.00
651$ind1 0 460 260
 
0.00
880$ind1 3 282 254
 
0.00
880->250$ind1 1 251 251
 
0.00
090$ind2 0 227 227
 
0.00
260$ind2 0 225 225
 
0.00
SRC$ind1 0 208 208
 
0.00
SRC$ind2 0 208 208
 
0.00
546$ind1 0 163 163
 
0.00
300$ind2 4 155 155
 
0.00
880->880$ind2 0 158 151
 
0.00
880->880$ind1 0 154 135
 
0.00
260$ind2 1 121 121
 
0.00
880->100$ind2 0 111 109
 
0.00
880$ind2 3 108 104
 
0.00
880->440$ind1 1 99 99
 
0.00
500$ind1 0 84 83
 
0.00
130$ind2 0 66 66
 
0.00
039$ind2 0 66 66
 
0.00
880$ind2 7 72 66
 
0.00
880$ind2 5 63 62
 
0.00
886$ind2 0 238 59
 
0.00
039$ind2 9 58 58
 
0.00
880->500$ind1 0 56 56
 
0.00
880->260$ind2 1 56 56
 
0.00
880->830$ind1 1 48 48
 
0.00
880->880$ind2 1 45 45
 
0.00
035$ind1 0 48 43
 
0.00
035$ind2 0 48 43
 
0.00
092$ind1 0 41 41
 
0.00
880->880$ind1 3 46 39
 
0.00
997$ind1 0 38 38
 
0.00
997$ind2 0 38 38
 
0.00
830$ind1 1 35 35
 
0.00
500$ind2 0 32 32
 
0.00
504$ind2 0 32 32
 
0.00
880->440$ind1 0 33 31
 
0.00
891$ind1 4 39 28
 
0.00
880->651$ind1 0 36 28
 
0.00
891$ind2 0 59 28
 
0.00
830$ind1 0 25 25
 
0.00
880->880$ind1 2 23 22
 
0.00
022$ind2 0 21 21
 
0.00
880->260$ind2 0 21 21
 
0.00
880->100$ind2 1 20 20
 
0.00
880->130$ind2 0 18 18
 
0.00
111$ind2 0 18 18
 
0.00
880->880$ind2 4 19 17
 
0.00
945$ind2 0 17 17
 
0.00
985$ind1 1 21 16
 
0.00
020$ind1 0 16 15
 
0.00
880$ind2 8 13 13
 
0.00
490$ind2 4 12 12
 
0.00
880->880$ind2 2 15 12
 
0.00
891$ind1 1 15 12
 
0.00
880->500$ind1 1 12 11
 
0.00
222$ind1 0 11 11
 
0.00
more
invalid value (240 variants) [+] 343,788 257,168
 
1.37
245$ind1 " " 108,714 108,714
 
0.58
700$ind2 0 47,776 42,058
 
0.22
100$ind1 " " 29,520 29,520
 
0.16
880->245$ind2 " " 22,516 22,459
 
0.12
852$ind2 9 22,971 21,844
 
0.12
880->264$ind2 " " 21,190 21,112
 
0.11
880->264$ind1 0 17,233 17,159
 
0.09
880->490$ind1 " " 16,518 16,417
 
0.09
720$ind1 0 14,966 14,966
 
0.08
490$ind1 " " 11,114 10,946
 
0.06
110$ind1 " " 6,824 6,824
 
0.04
710$ind2 0 3,868 3,624
 
0.02
866$ind2 " " 2,892 2,889
 
0.02
245$ind2 " " 1,654 1,654
 
0.01
886$ind1 " " 1,447 1,447
 
0.01
700$ind2 1 1,632 1,301
 
0.01
880->830$ind2 " " 1,042 1,030
 
0.01
246$ind1 " " 902 884
 
0.00
505$ind1 " " 731 730
 
0.00
264$ind2 " " 666 656
 
0.00
600$ind2 " " 658 615
 
0.00
880->240$ind2 " " 608 608
 
0.00
880->245$ind1 " " 557 556
 
0.00
710$ind1 " " 470 469
 
0.00
630$ind1 " " 484 439
 
0.00
651$ind2 " " 621 419
 
0.00
880->600$ind2 " " 448 408
 
0.00
710$ind2 1 381 339
 
0.00
690$ind1 " " 300 300
 
0.00
072$ind2 1 280 280
 
0.00
880->100$ind1 " " 224 224
 
0.00
610$ind2 " " 228 222
 
0.00
700$ind1 " " 223 212
 
0.00
880->700$ind1 " " 227 200
 
0.00
650$ind2 " " 241 197
 
0.00
880->246$ind1 " " 191 184
 
0.00
730$ind2 1 175 167
 
0.00
100$ind1 2 159 159
 
0.00
880->440$ind2 " " 158 156
 
0.00
880->505$ind1 " " 154 154
 
0.00
LET$ind2 " " 153 153
 
0.00
510$ind1 " " 152 148
 
0.00
630$ind2 " " 159 147
 
0.00
700$ind1 2 129 125
 
0.00
830$ind2 " " 104 104
 
0.00
028$ind2 " " 93 92
 
0.00
880->264$ind1 1 89 88
 
0.00
730$ind1 " " 83 81
 
0.00
028$ind1 " " 82 81
 
0.00
880->700$ind2 0 88 79
 
0.00
880->650$ind2 " " 94 78
 
0.00
070$ind1 " " 69 69
 
0.00
039$ind1 " " 62 62
 
0.00
240$ind1 " " 60 60
 
0.00
880->700$ind2 1 65 58
 
0.00
264$ind1 1 57 57
 
0.00
880->600$ind1 " " 58 56
 
0.00
362$ind1 " " 56 56
 
0.00
880->710$ind1 " " 54 52
 
0.00
CFI$ind1 " " 50 50
 
0.00
041$ind2 1 45 45
 
0.00
880->610$ind2 " " 40 39
 
0.00
880->700$ind1 2 40 37
 
0.00
034$ind1 " " 33 33
 
0.00
880->240$ind1 " " 33 33
 
0.00
024$ind1 " " 48 32
 
0.00
780$ind2 " " 31 30
 
0.00
880->110$ind1 " " 30 30
 
0.00
711$ind2 0 29 28
 
0.00
730$ind2 0 30 28
 
0.00
245$ind1 3 27 27
 
0.00
880->130$ind1 " " 27 27
 
0.00
880->710$ind2 0 27 25
 
0.00
880->245$ind1 3 23 23
 
0.00
600$ind1 " " 25 22
 
0.00
776$ind1 " " 19 19
 
0.00
611$ind2 " " 22 19
 
0.00
880->610$ind1 " " 17 17
 
0.00
800$ind1 " " 17 17
 
0.00
785$ind2 " " 14 14
 
0.00
780$ind1 " " 14 14
 
0.00
610$ind1 " " 14 14
 
0.00
945$ind1 0 13 13
 
0.00
785$ind1 " " 13 13
 
0.00
655$ind2 " " 13 13
 
0.00
650$ind2 8 26 13
 
0.00
880->653$ind2 7 15 12
 
0.00
880->651$ind2 " " 14 12
 
0.00
210$ind1 " " 11 11
 
0.00
880->100$ind1 2 11 11
 
0.00
246$ind1 4 10 10
 
0.00
041$ind2 0 10 10
 
0.00
490$ind1 o 9 9
 
0.00
880->510$ind1 " " 10 9
 
0.00
880->630$ind1 " " 8 8
 
0.00
700$ind2 4 7 7
 
0.00
880->245$ind1 2 7 7
 
0.00
037$ind1 4 7 7
 
0.00
711$ind2 1 6 6
 
0.00
029$ind1 " " 6 6
 
0.00
more
subfield level issues 17,987,940 4,986,054
 
26.54
undefined subfield (797 variants) [+] 12,148,829 3,156,236
 
16.80
886 x 3,816,780 1,948,504
 
10.37
886 h 2,005,992 1,483,932
 
7.90
886 p 1,763,979 1,236,948
 
6.58
886 z 1,446,841 700,269
 
3.73
DGM b 578,781 578,770
 
3.08
852 o 385,314 383,399
 
2.04
886 f 345,212 295,471
 
1.57
886 t 460,655 261,728
 
1.39
886 g 250,097 249,677
 
1.33
886 c 505,231 248,003
 
1.32
ONS b 159,708 82,596
 
0.44
886 e 96,105 75,957
 
0.40
886 j 64,054 60,032
 
0.32
886 k 60,174 49,020
 
0.26
886 d 78,648 41,816
 
0.22
720 d 17,775 17,474
 
0.09
720 c 17,249 16,799
 
0.09
886 u 17,592 16,550
 
0.09
985 m 8,265 8,262
 
0.04
985 u 8,265 8,262
 
0.04
985 y 8,265 8,262
 
0.04
720 b 7,273 7,139
 
0.04
985 b 3,904 3,745
 
0.02
985 j 3,890 3,731
 
0.02
985 e 3,042 3,032
 
0.02
599 5 2,734 2,428
 
0.01
886 i 2,580 2,298
 
0.01
035 9 1,877 1,876
 
0.01
597 d 1,881 1,828
 
0.01
985 c 1,433 1,427
 
0.01
246 c 1,314 1,304
 
0.01
020 b 1,244 1,223
 
0.01
886 v 1,445 1,005
 
0.01
886 s 1,331 871
 
0.00
886 q 869 799
 
0.00
043 5 785 784
 
0.00
886 l 1,628 780
 
0.00
597 c 717 685
 
0.00
985 5 642 642
 
0.00
020 j 598 596
 
0.00
985 2 557 555
 
0.00
264 e 530 519
 
0.00
490 p 451 441
 
0.00
711 b 676 423
 
0.00
886 r 378 352
 
0.00
041 1 335 335
 
0.00
886 n 290 284
 
0.00
245 e 354 270
 
0.00
720 q 267 262
 
0.00
246 C 234 233
 
0.00
720 t 278 224
 
0.00
985 d 198 192
 
0.00
100 D 187 187
 
0.00
856 9 214 167
 
0.00
955 i 162 159
 
0.00
700 1 216 154
 
0.00
111 b 164 140
 
0.00
020 1 209 140
 
0.00
CNF b 174 139
 
0.00
490 n 140 137
 
0.00
246 " " 137 136
 
0.00
264 f 140 130
 
0.00
100 1 130 127
 
0.00
490 1 136 124
 
0.00
720 n 124 124
 
0.00
490 b 154 123
 
0.00
110 x 116 114
 
0.00
886 m 121 112
 
0.00
776 q 95 91
 
0.00
100 x 87 87
 
0.00
050 x 84 84
 
0.00
246 S 82 81
 
0.00
955 e 80 75
 
0.00
650 9 96 73
 
0.00
700 D 72 72
 
0.00
886 o 75 70
 
0.00
020 2 92 65
 
0.00
260 d 65 64
 
0.00
245 d 62 62
 
0.00
955 c 67 61
 
0.00
653 x 72 60
 
0.00
886 w 61 58
 
0.00
039 y 58 58
 
0.00
039 z 58 58
 
0.00
916 2 58 58
 
0.00
020 9 74 57
 
0.00
886 y 62 56
 
0.00
246 T 55 55
 
0.00
039 b 52 52
 
0.00
019 d 51 51
 
0.00
246 R 49 49
 
0.00
505 9 232 49
 
0.00
246 O 48 47
 
0.00
830 b 48 46
 
0.00
500 b 43 43
 
0.00
100 s 43 43
 
0.00
955 d 44 43
 
0.00
264 g 42 42
 
0.00
490 c 47 41
 
0.00
653 b 42 40
 
0.00
more
invalid length (65 variants) [+] 88 83
 
0.00
045$a 'x4x': length is not 4 char 15 15
 
0.00
045$a 'n-cn-qu': length is not 4 char 3 3
 
0.00
045$a 'issnuk': length is not 4 char 3 3
 
0.00
045$a 'x7': length is not 4 char 2 2
 
0.00
045$a 'eng': length is not 4 char 2 2
 
0.00
045$a 'd1946': length is not 4 char 2 2
 
0.00
045$a 'd1972': length is not 4 char 2 2
 
0.00
045$a 'w14w9': length is not 4 char 1 1
 
0.00
045$a 'd1986': length is not 4 char 1 1
 
0.00
045$a 'd1902': length is not 4 char 1 1
 
0.00
045$a 'Lecture notes in computer science, ISSN 0302-9743 ; 5744 2009': length is not 4 char 1 1
 
0.00
045$a 'd1796': length is not 4 char 1 1
 
0.00
045$a 'ger': length is not 4 char 1 1
 
0.00
045$a '018674800': length is not 4 char 1 1
 
0.00
045$a 'd1692': length is not 4 char 1 1
 
0.00
045$a '011914467': length is not 4 char 1 1
 
0.00
045$a 'd1725': length is not 4 char 1 1
 
0.00
045$a '040000': length is not 4 char 1 1
 
0.00
045$a 'd1500': length is not 4 char 1 1
 
0.00
045$a 'bd1981': length is not 4 char 1 1
 
0.00
045$a 'd1568': length is not 4 char 1 1
 
0.00
045$a 'd1576': length is not 4 char 1 1
 
0.00
045$a 'e-li---': length is not 4 char 1 1
 
0.00
045$a 'd1888': length is not 4 char 1 1
 
0.00
045$a 'd1908': length is not 4 char 1 1
 
0.00
045$a '019059144': length is not 4 char 1 1
 
0.00
045$a 'x49': length is not 4 char 1 1
 
0.00
045$a 'e-gx---': length is not 4 char 1 1
 
0.00
045$a '017781710': length is not 4 char 1 1
 
0.00
045$a '019398097': length is not 4 char 1 1
 
0.00
045$a 'w x': length is not 4 char 1 1
 
0.00
045$a 'd1975': length is not 4 char 1 1
 
0.00
045$a '020463976': length is not 4 char 1 1
 
0.00
045$a 'd1897': length is not 4 char 1 1
 
0.00
045$a 'd1909': length is not 4 char 1 1
 
0.00
045$a 'd1834': length is not 4 char 1 1
 
0.00
045$a 'd1904': length is not 4 char 1 1
 
0.00
045$a 'x5 x5': length is not 4 char 1 1
 
0.00
045$a 'd1884': length is not 4 char 1 1
 
0.00
045$a 'd1876': length is not 4 char 2 1
 
0.00
045$a 'jap': length is not 4 char 1 1
 
0.00
045$a 'e------': length is not 4 char 1 1
 
0.00
045$a 'no': length is not 4 char 1 1
 
0.00
045$a 'd4i': length is not 4 char 1 1
 
0.00
045$a 'e-uk-ni': length is not 4 char 1 1
 
0.00
045$a 'x5': length is not 4 char 1 1
 
0.00
045$a 't-v': length is not 4 char 1 1
 
0.00
045$a 'n-us---': length is not 4 char 1 1
 
0.00
045$a 's s': length is not 4 char 1 1
 
0.00
045$a '233265': length is not 4 char 1 1
 
0.00
045$a 's': length is not 4 char 1 1
 
0.00
045$a 'Archives of Civil and Mechanical Engineering': length is not 4 char 1 1
 
0.00
045$a 'ee-----': length is not 4 char 1 1
 
0.00
045$a 'e-pl---': length is not 4 char 1 1
 
0.00
045$a 'd1901': length is not 4 char 1 1
 
0.00
045$a 'ec-----': length is not 4 char 1 1
 
0.00
045$a '970000': length is not 4 char 1 1
 
0.00
045$a 'd1849': length is not 4 char 1 1
 
0.00
045$a 'd1906': length is not 4 char 1 1
 
0.00
045$a 'AIP Conference proceedings, ISSN 0094-243X ; no 1176 2009': length is not 4 char 1 1
 
0.00
045$a 'd1860': length is not 4 char 1 1
 
0.00
045$a '015482513': length is not 4 char 1 1
 
0.00
045$a 'd1591': length is not 4 char 1 1
 
0.00
045$a 'e-fr---': length is not 4 char 1 1
 
0.00
045$a '050000': length is not 4 char 1 1
 
0.00
invalid classification reference (9 variants) [+] 4,159 2,689
 
0.01
655$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 1,307 1,098
 
0.01
650$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 1,502 855
 
0.00
600$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 715 631
 
0.00
651$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 483 381
 
0.00
610$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 108 99
 
0.00
072$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 23 22
 
0.00
648$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 9 9
 
0.00
630$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 9 8
 
0.00
611$ind2 ind2 is '7' which means that the value should be found in subfield $2, but it is missing 3 3
 
0.00
content does not match any patterns (271863 variants) [+] 1,499,164 1,459,559
 
7.77
966$l mismatched 'ACQUIS' against '^(ACQUIS|SPACQ) .*[^\\.]$' 260,837 257,798
 
1.37
FFP$b mismatched 'BLDSS-3PM' against '^[A-Z]+$' 250,188 250,188
 
1.33
957$a mismatched '000000x' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 59,169 59,169
 
0.31
957$a mismatched 'NDd' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 19,195 19,194
 
0.10
FFP$b mismatched 'edepositIreland' against '^[A-Z]+$' 19,065 19,065
 
0.10
966$l mismatched 'SPACQ' against '^(ACQUIS|SPACQ) .*[^\\.]$' 15,246 14,953
 
0.08
957$a mismatched 'ndp' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 13,952 13,952
 
0.07
957$a mismatched 'ndd' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 6,202 6,202
 
0.03
957$a mismatched '31(18)p' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 3,984 3,984
 
0.02
957$a mismatched '91d' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 2,981 2,981
 
0.02
957$a mismatched '760515P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,301 1,301
 
0.01
957$a mismatched '760831D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,246 1,246
 
0.01
957$a mismatched 'd980115' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,202 1,202
 
0.01
FFP$b mismatched 'Alexander Street Press' against '^[A-Z]+$' 1,178 1,178
 
0.01
957$a mismatched '770130P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,138 1,138
 
0.01
FFP$b mismatched 'Dawson Turner' against '^[A-Z]+$' 1,084 1,084
 
0.01
957$a mismatched '761030P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,071 1,071
 
0.01
957$a mismatched '760415P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,056 1,056
 
0.01
957$a mismatched '800630P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,038 1,038
 
0.01
957$a mismatched '771130D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,036 1,036
 
0.01
957$a mismatched '760830P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,030 1,030
 
0.01
957$a mismatched '760615P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 1,016 1,016
 
0.01
957$a mismatched '770228P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 994 994
 
0.01
957$a mismatched '770430P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 990 990
 
0.01
957$a mismatched '770530P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 988 988
 
0.01
957$a mismatched '761130P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 977 977
 
0.01
957$a mismatched '770215P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 975 975
 
0.01
957$a mismatched '780131D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 972 972
 
0.01
957$a mismatched '780215P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 959 959
 
0.01
957$a mismatched '770330P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 957 957
 
0.01
957$a mismatched '761115P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 953 953
 
0.01
957$a mismatched '780630P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 952 952
 
0.01
957$a mismatched '780531D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 950 950
 
0.01
957$a mismatched '771015P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 946 946
 
0.01
957$a mismatched '780315P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 934 934
 
0.00
957$a mismatched '760915P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 925 925
 
0.00
957$a mismatched '820331D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 911 911
 
0.00
957$a mismatched '780915e' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 900 900
 
0.00
957$a mismatched '780228P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 880 880
 
0.00
957$a mismatched '770930D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 860 860
 
0.00
957$a mismatched '770915P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 857 857
 
0.00
957$a mismatched '770430D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 855 855
 
0.00
957$a mismatched '800315P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 852 852
 
0.00
957$a mismatched '760715P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 841 841
 
0.00
957$a mismatched '770715P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 839 839
 
0.00
957$a mismatched '770331D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 822 822
 
0.00
957$a mismatched '800815P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 822 822
 
0.00
957$a mismatched '770630D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 812 812
 
0.00
957$a mismatched '760315P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 812 812
 
0.00
957$a mismatched '770815P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 801 801
 
0.00
957$a mismatched 'c201019' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 798 798
 
0.00
957$a mismatched '771230P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 796 796
 
0.00
957$a mismatched '770830P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 796 796
 
0.00
957$a mismatched '770131D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 794 794
 
0.00
957$a mismatched '780731D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 772 772
 
0.00
039$a mismatched 'hhhh' against '^\\d\\d(\\d{2}|0[1-3])$' 766 766
 
0.00
957$a mismatched '761215P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 746 746
 
0.00
957$a mismatched '780130P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 740 740
 
0.00
957$a mismatched '800530P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 734 734
 
0.00
957$a mismatched '770315P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 729 729
 
0.00
957$a mismatched '780430D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 726 726
 
0.00
957$a mismatched '761130D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 722 722
 
0.00
957$a mismatched '790531D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 703 703
 
0.00
957$a mismatched '760530P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 700 700
 
0.00
957$a mismatched '771115P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 695 695
 
0.00
957$a mismatched '760430P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 693 693
 
0.00
957$a mismatched '771031D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 693 693
 
0.00
957$a mismatched '770930P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 693 693
 
0.00
957$a mismatched '761231D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 674 674
 
0.00
957$a mismatched '770630P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 669 669
 
0.00
957$a mismatched '760730P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 660 660
 
0.00
957$a mismatched '750930P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 653 653
 
0.00
957$a mismatched '8010E' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 651 651
 
0.00
957$a mismatched '760815P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 651 651
 
0.00
957$a mismatched '800430P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 646 646
 
0.00
957$a mismatched '7803E' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 643 643
 
0.00
957$a mismatched '770115P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 639 639
 
0.00
957$a mismatched '880831D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 632 632
 
0.00
957$a mismatched '771215P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 627 626
 
0.00
957$a mismatched '780415P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 622 622
 
0.00
957$a mismatched '800615P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 621 621
 
0.00
957$a mismatched '781115P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 620 620
 
0.00
957$a mismatched '771130P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 620 620
 
0.00
957$a mismatched '800715P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 610 610
 
0.00
957$a mismatched '780831D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 610 610
 
0.00
957$a mismatched '791115P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 608 608
 
0.00
957$a mismatched '760229P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 608 608
 
0.00
957$a mismatched '7901E' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 603 603
 
0.00
957$a mismatched '800731D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 603 603
 
0.00
957$a mismatched '800515P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 602 602
 
0.00
957$a mismatched '891231D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 597 597
 
0.00
957$a mismatched '800915P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 590 590
 
0.00
957$a mismatched '770515P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 590 590
 
0.00
957$a mismatched '760215P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 589 589
 
0.00
957$a mismatched '771030P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 583 583
 
0.00
957$a mismatched '770531D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 572 572
 
0.00
957$a mismatched '780515P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 572 572
 
0.00
595$a mismatched 'See also card index' against '^.*\\.$' 571 571
 
0.00
957$a mismatched '780615P' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 562 562
 
0.00
957$a mismatched '801031D' against '^((\\d{4}|\\d{6}|\\d{8})?(c|CR|d|w|p)?|[A-Z]+)$' 562 562
 
0.00
more
repetition of non-repeatable subfield (248 variants) [+] 3,593,880 2,443,262
 
13.00
886$a there are 2 instances 2,095,628 1,696,684
 
9.03
886$a there are 3 instances 1,420,033 701,240
 
3.73
886$b there are 2 instances 57,422 57,094
 
0.30
886$a there are 4 instances 7,984 6,493
 
0.03
020$a there are 2 instances 1,730 1,729
 
0.01
886$a there are 5 instances 1,578 1,375
 
0.01
SRC$a there are 2 instances 1,139 1,139
 
0.01
015$2 there are 2 instances 738 738
 
0.00
852$3 there are 2 instances 1,220 525
 
0.00
020$c there are 2 instances 458 458
 
0.00
886$a there are 6 instances 452 415
 
0.00
985$a there are 2 instances 396 396
 
0.00
886$a there are 7 instances 447 383
 
0.00
245$a there are 2 instances 305 304
 
0.00
019$a there are 2 instances 241 241
 
0.00
597$a there are 2 instances 240 240
 
0.00
245$b there are 2 instances 231 226
 
0.00
600$a there are 2 instances 213 198
 
0.00
072$a there are 2 instances 196 196
 
0.00
500$5 there are 2 instances 155 155
 
0.00
886$a there are 10 instances 141 141
 
0.00
955$a there are 2 instances 120 119
 
0.00
886$a there are 25 instances 113 97
 
0.00
886$b there are 3 instances 92 83
 
0.00
886$a there are 21 instances 87 82
 
0.00
245$c there are 2 instances 81 81
 
0.00
FIN$d there are 2 instances 79 79
 
0.00
100$a there are 2 instances 76 76
 
0.00
886$a there are 26 instances 79 75
 
0.00
540$a there are 2 instances 72 70
 
0.00
830$a there are 2 instances 70 68
 
0.00
886$a there are 9 instances 70 66
 
0.00
300$b there are 2 instances 65 65
 
0.00
985$a there are 3 instances 65 64
 
0.00
019$a there are 3 instances 63 63
 
0.00
886$a there are 11 instances 66 62
 
0.00
710$a there are 2 instances 66 62
 
0.00
886$a there are 8 instances 70 54
 
0.00
886$a there are 14 instances 66 53
 
0.00
886$a there are 23 instances 52 52
 
0.00
700$a there are 2 instances 50 48
 
0.00
246$a there are 2 instances 43 43
 
0.00
886$a there are 27 instances 42 42
 
0.00
886$a there are 13 instances 48 42
 
0.00
650$a there are 2 instances 42 38
 
0.00
072$a there are 3 instances 37 37
 
0.00
SRC$b there are 2 instances 36 36
 
0.00
830$v there are 2 instances 34 34
 
0.00
100$d there are 2 instances 34 34
 
0.00
040$a there are 2 instances 32 32
 
0.00
040$b there are 2 instances 31 31
 
0.00
BUF$a there are 2 instances 29 29
 
0.00
886$2 there are 2 instances 27 27
 
0.00
886$a there are 24 instances 27 26
 
0.00
886$a there are 22 instances 27 25
 
0.00
ONX$b there are 2 instances 23 23
 
0.00
886$a there are 12 instances 27 22
 
0.00
BUF$d there are 2 instances 22 22
 
0.00
590$a there are 2 instances 22 22
 
0.00
600$a there are 3 instances 22 21
 
0.00
985$a there are 4 instances 20 20
 
0.00
955$a there are 3 instances 19 19
 
0.00
500$a there are 2 instances 19 19
 
0.00
300$e there are 2 instances 18 18
 
0.00
955$b there are 2 instances 18 18
 
0.00
020$a there are 3 instances 16 16
 
0.00
700$d there are 2 instances 17 16
 
0.00
110$a there are 2 instances 16 16
 
0.00
100$u there are 2 instances 16 16
 
0.00
019$a there are 4 instances 16 16
 
0.00
245$a there are 3 instances 16 16
 
0.00
886$b there are 4 instances 14 14
 
0.00
964$c there are 2 instances 27 14
 
0.00
651$2 there are 2 instances 17 14
 
0.00
520$a there are 3 instances 13 13
 
0.00
780$b there are 2 instances 14 13
 
0.00
026$a there are 2 instances 12 12
 
0.00
785$b there are 2 instances 13 12
 
0.00
FIN$a there are 2 instances 12 12
 
0.00
019$a there are 5 instances 11 11
 
0.00
886$a there are 19 instances 11 11
 
0.00
246$b there are 2 instances 11 11
 
0.00
700$t there are 2 instances 11 11
 
0.00
245$b there are 3 instances 11 11
 
0.00
100$q there are 2 instances 9 9
 
0.00
240$a there are 2 instances 9 9
 
0.00
776$d there are 2 instances 9 9
 
0.00
651$a there are 2 instances 9 9
 
0.00
955$a there are 4 instances 8 8
 
0.00
072$a there are 4 instances 8 8
 
0.00
490$6 there are 2 instances 8 8
 
0.00
852$a there are 2 instances 8 8
 
0.00
810$t there are 2 instances 8 8
 
0.00
040$c there are 2 instances 7 7
 
0.00
780$b there are 3 instances 7 7
 
0.00
985$a there are 5 instances 7 7
 
0.00
CNF$a there are 2 instances 7 7
 
0.00
785$b there are 3 instances 7 7
 
0.00
886$a there are 17 instances 7 7
 
0.00
886$b there are 5 instances 7 7
 
0.00
more
invalid ISBN (16 variants) [+] 22,093 21,511
 
0.11
020$a ISBN is not a valid ISBN 10 value 11,667 11,452
 
0.06
020$a ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 6,149 5,940
 
0.03
020$a ISBN length should be either 10 or 13. 2,328 2,266
 
0.01
020$a ISBN is not a valid ISBN 13 value 1,909 1,860
 
0.01
776$z ISBN length should be either 10 or 13. 19 19
 
0.00
776$z ISBN is not a valid ISBN 13 value 6 6
 
0.00
776$z ISBN is not a valid ISBN 10 value 3 3
 
0.00
765$z ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 3 3
 
0.00
785$z ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 2 2
 
0.00
534$z ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 1 1
 
0.00
772$z ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 1 1
 
0.00
581$z ISBN length should be either 10 or 13. 1 1
 
0.00
765$z ISBN is not a valid ISBN 10 value 1 1
 
0.00
775$z ISBN is not a valid ISBN 10 value 1 1
 
0.00
780$z ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 1 1
 
0.00
775$z ISBN does not fit the pattern \\d[\\d-]+[\\dxX]. 1 1
 
0.00
invalid ISSN (32 variants) [+] 12,006 9,010
 
0.05
490$x ISSN failed in integrity check 4,000 3,864
 
0.02
490$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 3,187 3,050
 
0.02
830$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 1,942 1,935
 
0.01
773$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 919 919
 
0.00
830$x ISSN failed in integrity check 764 762
 
0.00
022$a ISSN failed in integrity check 472 472
 
0.00
022$a ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 242 242
 
0.00
785$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 99 99
 
0.00
780$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 86 86
 
0.00
730$x ISSN failed in integrity check 58 58
 
0.00
787$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 74 55
 
0.00
MNI$a ISSN failed in integrity check 28 28
 
0.00
440$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 14 14
 
0.00
772$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 14 13
 
0.00
776$x ISSN failed in integrity check 11 11
 
0.00
730$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 12 11
 
0.00
780$x ISSN failed in integrity check 11 11
 
0.00
770$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 11 10
 
0.00
710$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 9 9
 
0.00
775$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 13 8
 
0.00
785$x ISSN failed in integrity check 6 6
 
0.00
700$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 6 6
 
0.00
MNI$a ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 5 5
 
0.00
440$x ISSN failed in integrity check 5 5
 
0.00
510$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 4 4
 
0.00
510$x ISSN failed in integrity check 3 3
 
0.00
787$x ISSN failed in integrity check 3 3
 
0.00
LCS$x ISSN failed in integrity check 3 3
 
0.00
770$x ISSN failed in integrity check 2 2
 
0.00
776$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 1 1
 
0.00
775$x ISSN failed in integrity check 1 1
 
0.00
711$x ISSN does not fit the pattern \\d{4}-\\d{3}[\\dX]. 1 1
 
0.00
content is not well-formatted (176 variants) [+] 61,677 43,979
 
0.23
700$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 23,436 17,456
 
0.09
100$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 17,056 17,056
 
0.09
710$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 7,310 6,412
 
0.03
600$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 5,641 4,954
 
0.03
250$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 2,390 2,388
 
0.01
245$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 2,040 2,040
 
0.01
830$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 1,096 1,088
 
0.01
800$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 568 566
 
0.00
610$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 601 547
 
0.00
110$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 303 303
 
0.00
630$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 187 182
 
0.00
730$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 172 157
 
0.00
111$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 55 55
 
0.00
651$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 57 51
 
0.00
264$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 49 49
 
0.00
490$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 41 41
 
0.00
711$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 39 37
 
0.00
260$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 34 34
 
0.00
260$6 '880-0' is not parsable 31 31
 
0.00
246$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 30 30
 
0.00
650$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 44 28
 
0.00
500$6 '880-0' is not parsable 37 26
 
0.00
020$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 34 26
 
0.00
810$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 23 23
 
0.00
130$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 22 22
 
0.00
240$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 18 18
 
0.00
245$6 '880-1' is not parsable 17 17
 
0.00
505$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 18 17
 
0.00
264$6 '880-0' is not parsable 15 15
 
0.00
245$6 '880-0' is not parsable 15 15
 
0.00
245$6 '880-2' is not parsable 14 14
 
0.00
700$6 '880-0' is not parsable 11 11
 
0.00
740$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 22 11
 
0.00
490$6 '880-1' is not parsable 22 10
 
0.00
100$6 '880-1' is not parsable 6 6
 
0.00
264$6 '880-4' is not parsable 6 6
 
0.00
500$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 6 6
 
0.00
264$6 '880-2' is not parsable 5 5
 
0.00
250$6 '88-03' is not parsable 4 4
 
0.00
611$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 4 4
 
0.00
246$6 '880-0' is not parsable 4 4
 
0.00
520$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 4 4
 
0.00
700$6 '880-4' is not parsable 4 4
 
0.00
260$6 '880-3' is not parsable 4 4
 
0.00
830$6 '880-0' is not parsable 4 4
 
0.00
700$6 '880-6' is not parsable 4 4
 
0.00
300$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 3 3
 
0.00
100$6 '880-0' is not parsable 3 3
 
0.00
246$6 '880-3' is not parsable 3 3
 
0.00
260$6 '880-' is not parsable 3 3
 
0.00
250$6 '880-3' is not parsable 3 3
 
0.00
490$6 '880-4' is not parsable 3 3
 
0.00
245$6 '88-02' is not parsable 3 3
 
0.00
490$6 '880-0' is not parsable 3 3
 
0.00
245$6 '880-012' is not parsable 3 3
 
0.00
700$6 '880-9' is not parsable 2 2
 
0.00
500$6 '880-4' is not parsable 2 2
 
0.00
260$6 '88-03' is not parsable 2 2
 
0.00
490$6 '88-04' is not parsable 2 2
 
0.00
830$6 '880-9' is not parsable 2 2
 
0.00
700$6 '880-5' is not parsable 2 2
 
0.00
260$6 '8808-04' is not parsable 2 2
 
0.00
260$6 '880-023' is not parsable 2 2
 
0.00
264$6 '880-3' is not parsable 2 2
 
0.00
264$6 '88003' is not parsable 2 2
 
0.00
100$6 '880--01' is not parsable 2 2
 
0.00
600$6 '880-0' is not parsable 2 2
 
0.00
505$6 '880-0' is not parsable 2 2
 
0.00
700$6 '880-7' is not parsable 2 2
 
0.00
100$6 '8880-01' is not parsable 2 2
 
0.00
710$6 '880-0' is not parsable 2 2
 
0.00
740$6 '880-0' is not parsable 2 2
 
0.00
740$6 '88-08' is not parsable 2 2
 
0.00
264$6 '880-5' is not parsable 2 2
 
0.00
740$6 '880-6' is not parsable 2 2
 
0.00
362$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 2 2
 
0.00
245$6 '1' is not parsable 2 2
 
0.00
852$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 2 2
 
0.00
490$6 '880-3' is not parsable 2 2
 
0.00
245$6 '88-01' is not parsable 2 2
 
0.00
505$6 '880-5' is not parsable 2 2
 
0.00
830$6 '880-6' is not parsable 1 1
 
0.00
600$6 '6880-05' is not parsable 1 1
 
0.00
700$6 '880-045' is not parsable 1 1
 
0.00
246$6 '8880-02' is not parsable 1 1
 
0.00
740$6 '880-5' is not parsable 1 1
 
0.00
260$6 '8880-03' is not parsable 1 1
 
0.00
240$6 '6880-02' is not parsable 1 1
 
0.00
260$6 '8800-03' is not parsable 1 1
 
0.00
100$6 '80-01' is not parsable 1 1
 
0.00
580$6 Linkage does not fit the pattern nnn-nn[/..][/..]. 1 1
 
0.00
245$6 '88-' is not parsable 1 1
 
0.00
250$6 '880-4' is not parsable 1 1
 
0.00
740$6 '88-03' is not parsable 1 1
 
0.00
246$6 '6880-04' is not parsable 1 1
 
0.00
260$6 '880-4' is not parsable 1 1
 
0.00
240$6 '880--02' is not parsable 1 1
 
0.00
650$6 '04' is not parsable 1 1
 
0.00
130$6 '880--01' is not parsable 1 1
 
0.00
250$6 '8800-03' is not parsable 1 1
 
0.00
more
invalid value (741 variants) [+] 646,044 634,603
 
3.38
DRT$a GOOGLEBOOKS 522,884 522,884
 
2.78
DRT$a LD-escores 56,517 56,517
 
0.30
ONS$2 BIC Geographical qualifier 16,241 13,601
 
0.07
968$b X 12,557 12,557
 
0.07
MIS$a k-sep 6,584 6,584
 
0.04
ONS$2 BIC time period qualifer 7,038 6,129
 
0.03
ONS$2 BIC Language qualifer 3,189 3,149
 
0.02
980$a CARD 3,024 3,024
 
0.02
MIS$a SO 2,775 2,775
 
0.01
DRT$a DCW 2,723 2,723
 
0.01
975$a P* 2,462 2,462
 
0.01
975$a c 1,648 1,648
 
0.01
980$a card 1,585 1,585
 
0.01
968$b R 1,159 1,159
 
0.01
DRT$a WW1 933 933
 
0.00
968$a c 849 849
 
0.00
955$b Woolwich 633 631
 
0.00
975$b a 523 523
 
0.00
975$a f 270 270
 
0.00
DRT$a PLAYBILL 202 202
 
0.00
975$a P F 191 191
 
0.00
975$a CF 149 149
 
0.00
ONX$c 1 123 123
 
0.00
975$a P. 75 75
 
0.00
975$a PF 74 74
 
0.00
975$b G 63 63
 
0.00
975$a CA 62 62
 
0.00
975$a a 58 58
 
0.00
ONS$2 Subject keywords 137 48
 
0.00
975$a C A 46 46
 
0.00
ONX$c ENH 38 38
 
0.00
FIN$a y 31 31
 
0.00
034$a aa 26 26
 
0.00
975$a AC 21 21
 
0.00
975$a C F 19 19
 
0.00
968$a bx 19 19
 
0.00
MIS$a SUB 16 16
 
0.00
976$a P 15 15
 
0.00
975$a FbA 15 15
 
0.00
975$a AF 15 15
 
0.00
975$a CAF 14 14
 
0.00
BUF$a y 14 14
 
0.00
034$a 63360 14 14
 
0.00
968$b C 14 14
 
0.00
975$b Sanskrit subtitle transliterated 13 13
 
0.00
975$b j 12 12
 
0.00
980$a CArd 12 12
 
0.00
975$a F,A 11 11
 
0.00
955$b x for xxD 11 11
 
0.00
968$a X 10 10
 
0.00
975$a C G 10 10
 
0.00
975$a D 9 9
 
0.00
975$b 3 9 9
 
0.00
BGT$a Y 8 8
 
0.00
975$a T F 7 7
 
0.00
975$b 5 7 7
 
0.00
975$a AP 7 7
 
0.00
980$a 130312 7 7
 
0.00
975$a 0202p 6 6
 
0.00
MIS$a K-sep 6 6
 
0.00
975$b c 6 6
 
0.00
975$a C A F 6 6
 
0.00
BGT$a y 5 5
 
0.00
975$a H 5 5
 
0.00
034$a a190000 5 5
 
0.00
034$a 1 5 5
 
0.00
975$a A P 5 5
 
0.00
975$a A F 5 5
 
0.00
975$b A P 5 5
 
0.00
975$a AP* 5 5
 
0.00
034$a 253440 4 4
 
0.00
975$a J 4 4
 
0.00
980$a p 4 4
 
0.00
975$a g 4 4
 
0.00
034$a a10000 4 4
 
0.00
BGT$a 9 4 4
 
0.00
975$b F 4 4
 
0.00
980$a FILE 4 4
 
0.00
975$a G* 4 4
 
0.00
980$a CONF 4 4
 
0.00
955$b Reading Room 4 4
 
0.00
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more