2024-03-29T09:09:57Z
https://kpbc.umk.pl/oai-pmh-repository.xml
oai:kpbc.umk.pl:34092
2011-12-03T09:50:39Z
KujawskoPomorskaDigitalLibrary:EducationalMaterials:Economics KujawskoPomorskaDigitalLibrary:EducationalMaterials KujawskoPomorskaDigitalLibrary KujawskoPomorskaDigitalLibrary:EducationalMaterials:Sociology