@ARTICLE {SONWA:2019, title = {Structure of cocoa farming systems in west and central Africa: a review}, author = {Sonwa, D. and Weise, S. and Schroth, G. * and Janssens, M. and Shapiro, H. }, journal = {Agroforesty Systems}, year = {2019}, volume = {93}, pages = {2009--2019}, issn = {0167-4366}, note = {CRP CCAFS; Climate Change; Cocoa; First Online 13 November 2018}, url = {https://doi.org/10.1007/s10457-018-0306-7}, doi = {10.1007/s10457-018-0306-7}, }