2024-03-29T09:05:46Z
https://journals.umcs.pl/index/oai
oai:ojs.umcsd.home.net.pl:article/794
2015-07-14T19:41:18Z
ah:WS
oai:ojs.umcsd.home.net.pl:article/637
2018-09-04T05:54:26Z
ah:WS
oai:ojs.umcsd.home.net.pl:article/636
2018-09-04T05:54:26Z
ah:WS
oai:ojs.umcsd.home.net.pl:article/266
2018-09-04T05:54:09Z
ah:WS