2026-04-17T15:18:36.224+02:00 http://ride.i-d-e.de/apis/oai oai_marcxml http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd http://www.loc.gov/MARC21/slim oai_dc http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd http://www.openarchives.org/OAI/2.0/oai_dc/ oai_doajxml https://doaj.org/static/doaj/doajArticles.xsd https://doaj.org/static/doaj/doajArticles