@BOOK {VANLAUWE:2014a, title = {Challenges and opportunities for agricultural intensification of the humid highland systems of sub-Saharan Africa}, editor = {Vanlauwe, B. and Van Asten, P. and Blomme, G. }, year = {2014}, publisher = {Springer International Publishing Switzerland}, address = {Dordrecht, Netherlands}, isbn = {978-3-319-07661-4}, note = {404p.}, doi = {10.1007/978-3-319-07662-1}, }