@TECHREPORT {SONWA:2008a, title = {Diversifying and intensifying the Cocoa Agroforest Landscape: review and strategic approaches for managing the shade matrix in West and Central Africa}, author = {Sonwa, D. and Weise, S. and Janssens, M. and Schroth, G. and Shapiro, H. }, year = {2008}, month = {January}, type = {The Sustainable Tree Crops Program (STCP): working paper series}, number = {4}, pages = {1--60}, institution = {International Institute of Tropical Agriculture (IITA)}, address = {Accra, Ghana}, note = {p. 1-60}, }