2024-03-28T20:55:58Z
https://rcin.org.pl/oai-pmh-repository.xml
oai:rcin.org.pl:139699
2020-10-08T16:34:07Z
rcin.org.pl:partnerCollections:ibsyst:report rcin.org.pl rcin.org.pl:partnerCollections:ibsyst:books rcin.org.pl:partnerCollections:ibsyst rcin.org.pl:literature rcin.org.pl:literature:booksChapters rcin.org.pl:partnerCollections