Touat, O., and A. Tabani. “THE CORONA VIRUS CRISIS AND ITS IMPLICATIONS ON THE AIR TRANSPORT SECTOR IN ALGERIA”. Les Cahiers Du CREAD, Vol. 36, no. 3, Nov. 2020, pp. 475-99, https://revue.cread.dz/index.php/les-cahiers-du-cread/article/view/1263.