2024-03-29T13:50:58Z
http://pbc.up.krakow.pl/oai-pmh-repository.xml
oai:pbc.up.krakow.pl:1495
2010-10-29T09:19:24Z
PedagogicalDigitalLibrary:textbook_museum PedagogicalDigitalLibrary:Dziedzictwo PedagogicalDigitalLibrary PedagogicalDigitalLibrary:Dziedzictwo:Books PedagogicalDigitalLibrary:textbook_museum:fizyka PedagogicalDigitalLibrary:subjectcollections PedagogicalDigitalLibrary:subjectcollections:schoolreports