@BOOKLET {ALENE:2006d, title = {A framework for conceptualizing impact assessment and promoting impact culture in agricultural research}, author = {Alene, A. and Manyong, V. and Gockowski, J. and Coulibaly, O. and Abele, S. }, year = {2006}, address = {Ibadan, Nigeria}, howpublished = {Impact series}, note = {30p.; Impact series}, }