1. Adger, W. N., Kelly, P. M., Winkels, A., Huy, L. Q., and Locke, C. (2002). Migration, remittances, livelihood trajectories, and social resilience. Ambio 31(4): 358–366.
2. Almedom, A. M., Blumenthal, U., and Manderson, L. (1997). Hygiene evaluation procedures: approaches and methods for assessing water and sanitation related hygiene practices. International Nutrition Foundation for Developing Countries.
3. Barou, I. (2005). Bringing relief to Niger’s hungry? BBC News: World Edition; Sect http://news.bbc.co.uk/go/pr/fr/-/1/hi/world/africa/4675379.stml , Jul 13.
4. BBC Online Africa: Country Profiles: Timeline: Niger [Internet]; c2005 [cited Nov 26, 2005. Available from: http://news.bbc.co.uk/2/low/africa/1054274.stm .
5. Berkes, F., Folke, C., and Colding, J. (1998). Linking social and ecological systems: management practices and social mechanisms for building resilienceCambridge University Press, New York, p. 459.