2024-03-29T12:50:39Z
http://pbc.up.krakow.pl/oai-pmh-repository.xml
oai:pbc.up.krakow.pl:457
2009-10-20T12:00:25Z
PedagogicalDigitalLibrary:textbook_museum PedagogicalDigitalLibrary:Dziedzictwo PedagogicalDigitalLibrary PedagogicalDigitalLibrary:Dziedzictwo:Books PedagogicalDigitalLibrary:subjectcollections PedagogicalDigitalLibrary:textbook_museum:mathematics PedagogicalDigitalLibrary:subjectcollections:schoolreports