@INBOOK {IZAC:1993, title = {Analyse systematique des agrosystemes de bas-fond en Afrique accidentale: le programme de recherche de l'llTA}, author = {Izac, A. M. N. and Tucker, E. S. }, series = {Actes du seminaire d'Antananarivo, Madagascar}, year = {1993}, month = {December}, type = {Bas-fonds et riziculture}, pages = {203--212}, publisher = {CIRAD}, address = {Montpeller, France}, }