8Heshiya M, Yoshida I. Identification of Conditional Stochastic Gaussian Field. Journal of Engineering Mechanics, ASCE, 1996,122 ( 2 ) : 101 - 108.
9Ledesma A, Cens A, Melonso E E. Estimation of Parameters in Geotechnical Back Analysis : Maximum likelihood approach. Computers and Geotech- nics,1996,18(1) :1 -27.
10Sugno M. Fuzzy Measures and Fuzzy Integrals:A survey//Fuzzy Automatic and Decision Processes, Amsterdam, North -Holland, 1997:89 -102.