4WANG JIA-ding. The s tudy of synthetically geological hazards and the working out Its map of Lanzhou, proc. of intern symposium of habitat from floods[J]. Debris Flows and Avalanches, 3: 217-230, Berne, Switzerland.2 9 June-3 July,1991.
5MARIO MEJIA-NAVARRO,LUISA,GARCIA. Natural Hazard and risk assessment using decision support system, application: Glenwood springs, colorado [J].Environment and Engineering Geoscience, 1996, Ⅱ (3) :299-324.
