@ARTICLE {MENKIR:2012a, title = {Maize genetic improvement for enhanced productivity gains in West and Central Africa}, author = {Menkir, A. and Badu-Apraku, B. and Ajala, S. }, journal = {R4D review}, year = {2012}, month = {March}, number = {8}, pages = {6--10}, issn = {2071-3681}, url = {http://www.r4dreview.org}, }