2024-03-28T12:01:53Z
http://pbc.up.krakow.pl/oai-pmh-repository.xml
oai:pbc.up.krakow.pl:6606
2024-01-17T08:05:20Z
PedagogicalDigitalLibrary:textbook_museum PedagogicalDigitalLibrary:muzeum_bgup PedagogicalDigitalLibrary:Dziedzictwo PedagogicalDigitalLibrary PedagogicalDigitalLibrary:Dziedzictwo:Books PedagogicalDigitalLibrary:textbook_museum:mathematics