Groot, Jeroen C.J.Klapwijk, C.J.Timler, Carl J.Bekunda, Mateete A.Mourik, Tom A. vanDescheemaeker, Katrien K.Tittonell, Pablo A.Giller, Kenneth E.Snapp, Sieglinde S.Vanlauwe, Bernard2013-11-032013-11-03https://hdl.handle.net/10568/33870Rising to the challenge of sustainable intensification of agricultural production in Africa - Farming systems design to support action research for development