URL الوصول: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4ae621c16994ca390c056411e9f2b7ddhttps://hal.archives-ouvertes.fr/hal-02473097
URL الوصول: http://books.openedition.org/psorbonne/5143
URL الوصول: https://explore.openaire.eu/search/publication?articleId=od_______166::b845b42f17d53082b0e0892955664650https://hal.archives-ouvertes.fr/hal-02473097
URL الوصول: https://explore.openaire.eu/search/publication?articleId=od______3709::52891b209ccc1e51828dd5b649152a7dhttp://hdl.handle.net/11392/2350619
URL الوصول: https://explore.openaire.eu/search/publication?articleId=openedition_::4704ffcc06d621654b3c0a57ceed53b7http://books.openedition.org/psorbonne/5143
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b92e78755096f7064cc4c6241480744ahttps://doi.org/10.3406/rao.1994.1012