الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od_____10172::99edd71a603839fb14183673c4a8f489Testhttps://research.vumc.nl/en/publications/9167d8d4-b68e-4b01-a86a-9aa95ca1fe68Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d0b6dc7ac61faee7e0cbf9af7f21f203Testhttps://research.rug.nl/en/publications/dee53125-1948-4f64-8fb3-edb6321ba517Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a556f0b7275269a27fd8b8fc1c8d0026Testhttp://www.scopus.com/inward/record.url?eid=2-s2.0-22544446201&partnerID=MN8TOARSTest