CTA. 1998. La Prévention des crises alimentaires du Sahel. Dix ans d'expérience d'une action menée en réseau. Spore 77. CTA, Wageningen, The Netherlands.
Geis, M. and Rees, J. 2011. Climate Change in Africa’s Major River Basins Could Impede Continent’s Farm Transformation Efforts, Increase Cross-Border Water Conflict. Colombo, Sri Lanka: CGIAR Challenge Program for Water and Food.