2024-03-28T20:14:50Z
http://pbc.up.krakow.pl/oai-pmh-repository.xml
oai:pbc.up.krakow.pl:170
2024-01-16T08:04:35Z
PedagogicalDigitalLibrary:textbook_museum PedagogicalDigitalLibrary:muzeum_bgup PedagogicalDigitalLibrary:Dziedzictwo PedagogicalDigitalLibrary PedagogicalDigitalLibrary:Dziedzictwo:Books PedagogicalDigitalLibrary:textbook_museum:chemistry