2026-04-26T15:31:43.698886+02:00 www.numdam.org oai_dc http://www.openarchives.org/OAI/2.0/oai_dc.xsd http://www.openarchives.org/OAI/2.0/oai_dc/ eudml-article2 http://eudml.org/schema/2.0/eudml-article-2.0.xsd http://jats.nlm.nih.gov eudml-book2 http://eudml.org/schema/2.0/eudml-book-2.0.xsd http://eudml.org/schema/2.0/eudml-book