@ARTICLE {SONWA:2003e, title = {New synergies in the promotion of cocoa-based agroforestry systems in the humid forest zone of West and Central Africa}, author = {Sonwa, D. and Weise, S. and Janssens, M. }, journal = {ETFRN News}, year = {2003}, volume = {39/40}, pages = {38--40}, note = {Source: Globalisation, localisation and tropical forest management}, }