Why and how to implement a AR&D approach for Africa RISING? Preliminary results of a fast-track project - Valbuena, Diego; Andersson, J.; Waters-Bayer, Ann; Baudron, Frédéric; Chuma, Edward; Sida, T.; Thorne, Peter J.; Cullen, Beth; Descheemaeker, Katrien K.; Aker, J.; Snapp, Sieglinde S.; Gerard, Bruno G. (International Livestock Research Institute, 2012)