2024-03-28T16:16:27Z
http://bc.umcs.pl/oai-pmh-repository.xml
oai:bc.umcs.pl:36183
2021-05-20T11:10:15Z
dLibraDigitalLibrary:CulturalHeritage dLibraDigitalLibrary:ScienceandEducation dLibraDigitalLibrary:CulturalHeritage:Journals dLibraDigitalLibrary dLibraDigitalLibrary:ScienceandEducation:ScientificPapers