2024-03-28T20:17:07Z
https://www.wbc.poznan.pl/oai-pmh-repository.xml
oai:www.wbc.poznan.pl:223103
2013-02-04T09:36:45Z
rootCollection rootCollection:wbc rootCollection:wbc:DigitalLibraryOfWielkopolska rootCollection:wbc:DigitalLibraryOfWielkopolska:EducationalMaterials