1. Alexander D. Natural disaster. ed. Chapman and Hall, New York; 1993.
2. Barredo J, Lavalle C, Camia A, Hiederer R, Niemeyer S, de Roo Ad. An integrated assessment of weather-driven natural risk in Europe. European Commission. Directorate General. Joint Research Centre. IES Land Management Unit. 2005.
3. Le risque d'inondation fluviale a Niamey (Niger). Alea, vulnerabilité et cartographie;Bechler-Carmaux;Ann Géogr,2000
4. Blaikie P, Cannon T, Davis I, Wisner B. At risk: natural hazards, people's vulnerability, and disaster. ed. Routledge, London; 1994.
5. Measuring the un-measurable;Birkmann,2006