Functional groups of Sahelian trees in a semiarid agroforestry system of Senegal
Joseph S. Diémé, Mayécor Diouf, Cristina Armas, Graciela M. Rusch, Francisco I. Pugnaire
J Plant Ecol . 2018, (3): 375 -384 .  DOI: 10.1093/jpe/rtw140