2026-08-08T16:21:09Z https://rcin.org.pl/oai-pmh-repository.xml

oai:rcin.org.pl:232335 2022-03-17T11:53:17Z rcin.org.pl:partnerCollections:imat rcin.org.pl rcin.org.pl:partnerCollections:imat:books rcin.org.pl:literature rcin.org.pl:literature:booksChapters rcin.org.pl:partnerCollections:imat:books:bookxix rcin.org.pl:partnerCollections