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Douthwaite, B and Baker, D and Weise, S and Gockowski, J and Manyong, V M and Keatinge, J D H (2005) Ecoregional research in Africa: learning lessons from IITA's Benchmark Area Approach. Experimental Agriculture, 41 (3). pp. 271-298. ISSN 0014-4797
Tarawali, S A and Singh, B B and Gupta, S S and Tabo, R and Harris, F and Nokoe, S and Fernández-Rivera, S and Bationo, A and Manyong, V M and Makinde, K and Odion, E C (2003) Cowpea as a key factor for a new approach to integrated crop–livestock systems research in the dry savannas of West Africa. In: Challenges and opportunities for enhancing sustainable cowpea production, 4 - 7 September 2000, IITA, Ibadan, Nigeria.