2G.W.Cran,1976,Graphical estimators for Weibull distributions,Microelectronics & Reliability,15,47-52.
3G.W.Cran,1988,Moments estimators for the 3-parameter Weibull distribution,IEEE Transactions on Reliability,37(4),360-363.
4G.U.Crevecoeur,1993,A model for the integrity assessment of aging repairable systems,IEEE Transactions on Reliability, 42(1),148-155.
5R.J.Herman&R.K.N.Patell,1971,Maxim- um likelihood estimation for multi-risk model,Tech-nometrics, 13(2),358-396.
6T.Ishioka&Y.Nonaka,1991, Maximum likelihood estimation of Weibull parameters for two independent competing risks,IEEE Trans.on Reliability,40(1),71-74.
7A.F.Attia,1993,0n estimation for mixtures of two Rayleigh distributions with censoring,Microelectronics & Reliability, 33(6),859-867.
8Joseph M. Richie Description of the Derivation of the Collision Risk Model Used in the Vertical Separation Simulation Risk Model[R]. DOT/FAA/CT-TN88/38,1989.
9Lloyd D E. Application of Monte Carlo Methods to Estimation of Collision Risks Associated with ATC Separation Standards[R].AD-773313,1973.
10(Bert)Bakker G J,Henk A P. Blom Air Traffic Collision Risk Modelling[Z].National Aerospace Laboratory NLR,IEEE, 1993.0191-2216.