الإتاحة: https://doi.org/10.1080/15548627.2020.1797280Testhttps://hdl.handle.net/10447/483335Test
الوصول الحر: https://escholarship.org/uc/item/9wk3d379Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a0d7f10908b7d66563d1fbbb3445c3a2Testhttp://hdl.handle.net/11573/1486108Test
الإتاحة: https://doi.org/10.4161/auto.19496Testhttps://cris.maastrichtuniversity.nl/en/publications/616a5250-777f-4cfb-9dfa-493cbc892216Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od_______185::634f7e544fbfbfd8b4da17261222b6ddTesthttps://infoscience.epfl.ch/record/285873Test