2Sherif Mohammed, Modelling project investment decision under uncertainty using possibility theory, International Journal of Project Management, Vol19,[2001], p231-241
3Choobineh. F, Behrens, A, Use of intervals and possibility distribution in economic analysis, Journal of operation research society, Vo143, No9,P907-918
5Yuwen Yanga,Jianhua Yinb.An expert system for selection of retaining wails and groundwater controls in deep exca- vation[J].Computers and Geotechnics, 2003(30) : 707-719.
