@INBOOK {BOKANGA:1992a, title = {Contraints in food and nutrition research}, author = {Bokanga, M. }, editor = {Thottappilly, G. and Monti, L. M. and Mohan-Raj, D. R. and Moore, A. W. }, year = {1992}, type = {Biotechnology: enhancing research on tropical crops in Africa}, pages = {33--38}, publisher = {CTA; International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, }