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1by Bett, Bernard K., Irungu, P., Andoke, J., Nyamwaro, Sospeter S., Murilla, G., Saini, R., Hassanali, A., Olet, P., Kitala, P., Gathuma, G., Hargrove, J., Randolph, Thomas F., McDermott, John J.
Published 2006-08Conference Paper bibliotecaCGIAR