الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2d975d38b24fc9d8765ce602a145110Testhttps://doi.org/10.1002/eji.201747388Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2402fa26c1edf03a0ce2ea85a500978fTesthttps://doi.org/10.1002/eji.201445150Test