@INBOOK {TARAWALI:2002a, title = {Cowpea as a key factor for a new approach to integrated crop-livestock systems research in the dry savannas of West Africa}, author = {Tarawali, S. and Singh, B. and Gupta, S. and Tabo, R. and Harris, F. and Nokoe, S. and Fernandez-Rivera, S. and Bationo, A. * and Manyong, V. and Makinde, K. and Odion, E. *}, year = {2002}, type = {Challenges and opportunities for enhancing sustainable cowpea production:}, pages = {233--251}, note = {Proceedings of the World Cowpea Conference III held at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 4-8 September 2000}, }