@ARTICLE {BADU-APRAKU:2003c, title = {Genotype by environment interactions in the regional early maize variety trials in West and Central Africa}, author = {Badu-Apraku, B. and Abamu, F. and Menkir, A. and Obeng-Antwi, K. * and The, C. *}, journal = {Maydica}, year = {2003}, volume = {48}, pages = {93--104}, }