2024-03-29T16:25:46Z
http://bc.umcs.pl/oai-pmh-repository.xml
oai:bc.umcs.pl:39967
2021-07-02T11:52:48Z
dLibraDigitalLibrary:CulturalHeritage dLibraDigitalLibrary:ScienceandEducation dLibraDigitalLibrary:CulturalHeritage:Journals dLibraDigitalLibrary dLibraDigitalLibrary:ScienceandEducation:ScientificPapers