2024-03-29T00:39:51Z
http://pbc.up.krakow.pl/oai-pmh-repository.xml
oai:pbc.up.krakow.pl:6585
2024-01-17T07:46:10Z
PedagogicalDigitalLibrary:textbook_museum PedagogicalDigitalLibrary:muzeum_bgup PedagogicalDigitalLibrary:Dziedzictwo PedagogicalDigitalLibrary PedagogicalDigitalLibrary:Dziedzictwo:Books PedagogicalDigitalLibrary:textbook_museum:mathematics