2024-03-29T01:17:27Z
https://kpbc.umk.pl/oai-pmh-repository.xml
oai:kpbc.umk.pl:67540
2022-04-06T12:37:59Z
KujawskoPomorskaDigitalLibrary:EducationalMaterials KujawskoPomorskaDigitalLibrary:EducationalMaterials:Ecology KujawskoPomorskaDigitalLibrary:EducationalMaterials:Law KujawskoPomorskaDigitalLibrary