2026-04-21T21:47:25Z http://pbc.up.krakow.pl/oai-pmh-repository.xml

oai:pbc.up.krakow.pl:7457 2025-03-18T11:44:21Z PedagogicalDigitalLibrary:Dziedzictwo PedagogicalDigitalLibrary:textbook_museum PedagogicalDigitalLibrary:muzeum_bgup PedagogicalDigitalLibrary PedagogicalDigitalLibrary:Dziedzictwo:Books PedagogicalDigitalLibrary:textbook_museum:mathematics