@ARTICLE {SCHULTHESS:1997b,
title = {Multi-trophic interactions in cassava, manihot esculenta, cropping systems in the subhumid tropics of West Africa},
author = {Schulthess, F. and Neuenschwander, P. and Gounou, S. },
journal = {Agriculture, Ecosystems and Environment},
year = {1997},
volume = {66},
pages = {211--222},
}