2024-03-29T10:53:59Z
https://journals.umcs.pl/index/oai
marcxml
http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd
http://www.loc.gov/MARC21/slim
nlm
http://dtd.nlm.nih.gov/publishing/2.3/xsd/journalpublishing.xsd
http://td.nlm.nih.gov/publishing/2.3
oai_dc
http://www.openarchives.org/OAI/2.0/oai_dc.xsd
http://www.openarchives.org/OAI/2.0/oai_dc/
rfc1807
http://www.openarchives.org/OAI/1.1/rfc1807.xsd
http://info.internet.isi.edu:80/in-notes/rfc/files/rfc1807.txt
oai_marc
http://www.openarchives.org/OAI/1.1/oai_marc.xsd
http://www.openarchives.org/OAI/1.1/oai_marc