الوصول الحر: https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-527482Testhttps://doi.org/10.1093/jbmrpl/ziae017Testhttps://uu.diva-portal.org/smash/get/diva2:1855731/FULLTEXT01.pdfTest
الإتاحة: https://doi.org/10.1093/jbmrpl/ziae006Testhttps://academic.oup.com/jbmrplus/article-pdf/8/2/ziae006/57406052/ziae006.pdfTest
الوصول الحر: https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-185288Testhttps://liu.diva-portal.org/smash/get/diva2:1661080/FULLTEXT01.pdfTest
الوصول الحر: http://europeana.eu/portal/record/9200419/BibliographicResource_3000125953017.htmlTest
الوصول الحر: http://katalog.nukat.edu.pl/lib/item?id=chamo:4487663&theme=nukatTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od______2186::ec1ec621722f123f651a4f8f3b09779dTesthttp://www.nusl.cz/ntk/nusl-415058Test
الوصول الحر: https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143087Test
الإتاحة: https://doi.org/20.500.11956/118547Testhttps://hdl.handle.net/20.500.11956/118547Test
الإتاحة: https://hdl.handle.net/2144/39615Test
الوصول الحر: https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-499600Test