2024-03-29T02:45:35Z
https://kpbc.umk.pl/oai-pmh-repository.xml
oai:kpbc.umk.pl:95408
2018-01-17T13:51:16Z
KujawskoPomorskaDigitalLibrary:EducationalMaterials KujawskoPomorskaDigitalLibrary:EducationalMaterials:electrotechnics KujawskoPomorskaDigitalLibrary