2026-05-30T17:03:32Z https://repository.de.dariah.eu/1.0/oaipmh/oai oai_dc https://www.openarchives.org/OAI/2.0/oai_dc.xsd http://www.openarchives.org/OAI/2.0/oai_dc/ oai_datacite http://schema.datacite.org/meta/kernel-3/metadata.xsd http://datacite.org/schema/kernel-3