3Yen B C, Ang A H S. Risk Analysis in Design of Hydraulic Projects [ G ]/// Chiu C L, eds. Proc 1st Inter Sump on Stocha Hydrau. Pittsburg: University of Pittsburg, 1971:694 -709.
4Tung Y K. Risk - Based Design of Flood Defense Systems[ M]. New York : Sci- ence Press, 2002.