Impact of drought on water quality in the Youssef Ben Tachafine dam (Souss-Massa region, Morocco)Fatima Boudarfa, Elmahjoub Gallouli, Mohamed El hafa and Hassan Oulad AliE3S Web Conf., 183 (2020) 02007DOI: https://doi.org/10.1051/e3sconf/202018302007