Source: https://www.researchgate.net/profile/Mouna-Mezghani-2/publication/232015981_Analyse_et_modelisation_de_la_croissance_vegetative_chez_l'olivier_Olea_europaea_L_en_conditions_pluviales/links/574ebe9208ae789584d797bb/Analyse-et-modelisation-de-la-croissance-vegetative-chez-lolivier-Olea-europaea-L-en-conditions-pluviales.pdf