الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f58d5e1000408a0f0804d0b935ec508Testhttps://doi.org/10.23736/s0026-4725.20.05234-2Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31d0f111006319341743575a0031db62Testhttps://ora.ox.ac.uk/objects/uuid:cc37fff7-fb18-4677-9915-24e6ba021aafTest