7Dillon,W.R.and Goldstein,M.Multivariate Analysis:Methods and Applications[M].John Wiley & Sons,New York,1984.
8Khoshgoftaar,T.M,Yi Liu,Seliya,N.A multiobjective module-order model for software quality enhancement[J].IEEE Transactions on Evolutionary Computation,2004,8(6):593 -608.