8FISHER R A. The use of multiple measures in taxonomic problems [J]. Annals of Eugenics, 1936, 7:179 -188.
9BENNELL J A, CRABBE D, THOMAS S, et al. Modelling sovereign credit ratings: neural networks versus ordered probit [J]. Expert Systems with Applications, 2006 (30) : 415 - 425.
10ROSE P S, ANDREWS W T, GIROUX G A. Predicting business failure : a macroeconomic perspective [ J ]. Journal of Accounting, Auditing and Finance, 1982, 6 : 20 - 31.
