Tahri, Djilali, et al. “Distribution Modeling, Soil Properties, and Variation in Essential Oils Chemical Composition of Rhanterium Adpressum Coss. & Dur”. European Journal of Ecology, vol. 5, no. 2, Dec. 2019, pp. 111-7, https://doi.org/10.2478/eje-2019-0017.