2024-03-28T10:47:52Z
https://journals.us.edu.pl/index.php/PR/oai
oai:ojs.www.journals.us.edu.pl:article/3495
2015-08-20T14:30:40Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3535
2015-08-20T19:57:44Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3576
2015-08-21T12:58:14Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3606
2015-08-21T16:45:07Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3642
2015-08-22T11:29:10Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3666
2015-08-25T18:36:36Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3691
2015-08-23T11:26:20Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3715
2020-03-22T15:44:22Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/3782
2016-04-24T10:53:35Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/4607
2016-04-24T11:36:23Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/4642
2016-04-24T20:04:53Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/4780
2020-03-21T09:35:31Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5062
2017-06-24T14:21:14Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5500
2017-04-14T21:55:59Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5501
2017-04-14T21:55:59Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5502
2017-04-14T21:55:59Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5534
2017-04-15T04:17:19Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5548
2017-04-15T04:56:15Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5549
2017-04-15T04:56:15Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/5550
2017-04-15T04:56:15Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/7352
2018-10-29T09:57:23Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/7399
2019-01-10T17:47:14Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/7568
2019-07-02T12:39:20Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/7807
2021-07-12T22:43:42Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/7927
2021-07-12T22:43:20Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/8603
2020-03-21T09:33:56Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/8629
2020-03-22T15:43:02Z
PR:SPR
oai:ojs.www.journals.us.edu.pl:article/12698
2022-05-30T16:40:28Z
PR:SPR