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Loeffen, M and Ndjeunga, J and Kelly, V and Sylla, M L and Traore, B and Tessougue, M (2008) Uptake of Soil and Water Conservation Technologies in West Africa: A Case Study of the Office de la Haute Vallée du Niger (OHVN) in Mali. Monograph. International Crops Research Institute for the Semi-Arid Tropics.