@PROCEEDINGS {NTARE:1989a, title = {Recent developments in millet/cowpea cropping systems for low rainfall areas of Sudano-Sahelian zone of West Africa}, author = {Ntare, B. R. and Fussell, L. K. and Serafini, P. G. }, booktitle = {Proceedings of a workshop on soil, water and crop management systems for rainfed agriculture in the Sudano-Sahelian zone of West Africa, 11-15 Jan 1987}, year = {1989}, }