dc.contributor.author,birthdate,dc.identifier.issn,dc.identifier.isbn
 Leading space,2019-07-29,,
Trailing space ,2019-07-29,,
Excessive  space,2019-07-29,,
Miscellaenous ||whitespace | issues ,2019-07-29,,
Duplicate||Duplicate,2019-07-29,,
Invalid ISSN,2019-07-29,2321-2302,
Invalid ISBN,2019-07-29,,978-0-306-40615-6
Multiple valid ISSNs,2019-07-29,0378-5955||0024-9319,
Multiple valid ISBNs,2019-07-29,,99921-58-10-7||978-0-306-40615-7
Invalid date,2019-07-260,,
Multiple dates,2019-07-26||2019-01-10,,
Invalid multi-value separator,,0378-5955|0024-9319,
Unnecessary Unicode​,2019-07-29,,
Suspicious character||foreˆt,2019-07-29,,