Element '{http://www.crossref.org/schema/4.3.6}surname': [facet 'minLength'] The value has a length of '0'; this underruns the allowed minimum length of '1'.
Element '{http://www.crossref.org/schema/4.3.6}surname': [facet 'pattern'] The value '' is not accepted by the pattern '[^\d\?]*[^\?\s]+[^\d]*'.
Element '{http://www.crossref.org/schema/4.3.6}surname': '' is not a valid value of the local atomic type.
<?xml version="1.0" encoding="utf-8"?> <doi_batch xmlns="http://www.crossref.org/schema/4.3.6" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1" xmlns:ai="http://www.crossref.org/AccessIndicators.xsd" version="4.3.6" xsi:schemaLocation="http://www.crossref.org/schema/4.3.6 https://www.crossref.org/schemas/crossref4.3.6.xsd"> <head> <doi_batch_id>_1759828298</doi_batch_id> <timestamp>1759828298</timestamp> <depositor> <depositor_name>Sean Ulm</depositor_name> <email_address>sean.ulm@jcu.edu.au</email_address> </depositor> <registrant>James Cook University</registrant> </head> <body> <journal> <journal_metadata> <full_title>Queensland Archaeological Research</full_title> <abbrev_title>QAR</abbrev_title> <issn media_type="electronic">1839-339X</issn> <issn media_type="print">0814-3021</issn> </journal_metadata> <journal_issue> <publication_date media_type="online"> <month>12</month> <day>01</day> <year>2002</year> </publication_date> <journal_volume> <volume>13</volume> </journal_volume> <doi_data> <doi>10.25120/qar.13.2002</doi> <resource>https://journals.jcu.edu.au/index.php/qar/issue/view/8</resource> </doi_data> </journal_issue> <journal_article publication_type="full_text" metadata_distribution_opts="any"> <titles> <title>Backmatter</title> </titles> <contributors> <person_name contributor_role="author" sequence="first"> <surname/> </person_name> </contributors> <publication_date media_type="online"> <month>12</month> <day>01</day> <year>2002</year> </publication_date> <doi_data> <doi>10.25120/qar.13.2002.71</doi> <resource>https://journals.jcu.edu.au/index.php/qar/article/view/71</resource> <collection property="crawler-based"> <item crawler="iParadigms"> <resource>https://journals.jcu.edu.au/index.php/qar/article/download/71/66</resource> </item> </collection> <collection property="text-mining"> <item> <resource mime_type="application/pdf">https://journals.jcu.edu.au/index.php/qar/article/download/71/66</resource> </item> </collection> </doi_data> </journal_article> </journal> </body> </doi_batch>