Lamqadem, A. A., H. Saber, and A. Rahimi. “Spatiotemporal Changes of Vegetation in the Middle Draa Valley Oasis: A Study Case of M’hamid El Ghizlane Oasis (Morocco)”. European Scientific Journal, ESJ, Vol. 13, no. 24, Aug. 2017, p. 115, doi:10.19044/esj.2017.v13n24p115.