Guerfel, M., Mansour, M. B., Ouni, Y., Guido, F., Boujnah, D. and Zarrouk, M. (2012) “Chemical composition of virgin olive oils from the Chemlali cultivar with regard to the method of the olive tree propagation”, Grasas y Aceites, 63(3), pp. 290–295. doi: 10.3989/gya.010712.