2026-05-01T09:00:27Z https://rcin.org.pl/ibl/oai-pmh-repository.xml

oai:rcin.org.pl:154595 2026-03-19T17:30:11Z rcin.org.pl rcin.org.pl:partnerCollections:iblit:book rcin.org.pl:literature rcin.org.pl:literature:booksChapters rcin.org.pl:partnerCollections:iblit rcin.org.pl:partnerCollections