2024-03-29T10:23:30Z
http://bc.umcs.pl/oai-pmh-repository.xml
oai:bc.umcs.pl:705
2022-11-19T10:36:39Z
dLibraDigitalLibrary:ScienceandEducation dLibraDigitalLibrary dLibraDigitalLibrary:Lublin700 dLibraDigitalLibrary:ScienceandEducation:ScientificPapers
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