@ARTICLE {TOSSAH:1999, title = {Alley cropping in the moist savanna of West Africa II. Impact on soil productivity in a north-to-south transect in Togo}, author = {Tossah, B. * and Samba, D. K. and Vanlauwe, B. and Sanginga, N. and Lyasse, O. and Diels, J. and Merckx, R. }, journal = {Agroforestry Systems}, year = {1999}, volume = {42}, number = {3}, pages = {229--244}, issn = {0167-4366}, }