@INPROCEEDINGS {KAMARA:2012c, title = {Improvements in grain and fodder yield of cowpea (Vigna unguiculata) varieties developed in the Sudan savannas of Nigeria over the past four decades}, author = {Kamara, A. and Ewansiha, S. U. and Ajeigbe, H. and Okechukwu, R. and Tefera, H. and Boukar, O. and Omoigui, L. *}, booktitle = {Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010}, year = {2012}, pages = {179--188}, organization = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, isbn = {978-978-8444-07-7}, note = {ISBN: 978-978-8444-07-7}, }