2024-03-28T10:55:08Z
https://kpbc.umk.pl/oai-pmh-repository.xml
oai:kpbc.umk.pl:56124
2018-01-18T11:05:08Z
KujawskoPomorskaDigitalLibrary:EducationalMaterials:mechanics KujawskoPomorskaDigitalLibrary:EducationalMaterials KujawskoPomorskaDigitalLibrary