@BOOK {COULIBALY:2008a, title = {Baseline study for impact assessment of high quality insect resistant cowpea in West Africa}, author = {Coulibaly, O. and Aitchedji, C. and Gbegbelegbe, S. and Mignouna, H. and Lowenberg-DeBoer, J. }, year = {2008}, publisher = {African Agricultural Technology Foundation}, isbn = {9966-775-03-X}, note = {vi, 51 pp}, }