2024-03-28T16:35:15Z
https://obc.opole.pl/oai-pmh-repository.xml
oai:obc.opole.pl:15702
2022-12-22T10:17:02Z
dLibraDigitalLibrary dLibraDigitalLibrary:partners:is_opole dLibraDigitalLibrary:regional_collection dLibraDigitalLibrary:regional_collection:periodical dLibraDigitalLibrary:partners