@INBOOK {NKAMLEU:2000, title = {La pratique de la jach{\`e}re en Afrique tropicale: ccompar{\'e}e au Nigeria et au Cameroun}, author = {Nkamleu, G. B. and Kamajou, F. and Gockowski, J. }, editor = {Floret, C. and Pontanier, R. }, year = {2000}, type = {La jach{\`e}re en Afrique Tropicale : r{\^o}les, am{\'e}nagement, alternatives}, pages = {1--5}, publisher = {John Libbey Eurotext}, }