2024-03-28T21:15:10Z
http://bc.umcs.pl/oai-pmh-repository.xml
oai:bc.umcs.pl:2755
2012-11-26T10:53:23Z
dLibraDigitalLibrary:CulturalHeritage dLibraDigitalLibrary:ScienceandEducation dLibraDigitalLibrary:CulturalHeritage:Journals dLibraDigitalLibrary dLibraDigitalLibrary:ScienceandEducation:ScientificPapers