5Allen R G, Pereira L S, Raes D, et al. 2007. Crop evapotranspira- tion. Rome: FAO Irrigation and Drainage Paper, 1998.
6Barry J B, Olivier M. 2007. Weather index insurance for agriculture and rural areas in lower-incomecountries. Amer J Agri Econo- mi, 89(5) :1241-1247.
7Hess U, Syroka J. 2005. Weather-based insurance in Southern Afri- ca : The case of Malawi Agriculture and Rural Development Dis- cussion. The World Bank, Washington, D C,13.
8Paulson N D, Hart C E. 2006. A spatial approach to addressing weather derivative basis risk: Adrought insurance example/// 2006 Annual Meeting of American Agricultural Economics As- sociation. Iowa State University, Ames.
9Raphael N K, Holly H W, Douglas L Y. 2006. Weather-based crop insurance contracts for africancountries//International Associa- tion of Agricultural Economists Conference. Gold Coast, Aus- tralia.
10Varangis P, Skees J, Barnett B. 2005. Weather indexes for develo- ping countries//Dischel R S. Climate Risk and the Weather Market. World Bank, University of Kentucky and University of Georgia.
