1. Barlow, R.E., Proschan, F., 1965. Mathematical Theory of Reliability. Wiley, New York.
2. Fitting the negative binomial distribution to biological data;Bliss;Biometrics,1953
3. On a generalization of the Poisson distribution;Consul;Technometrics,1973
4. Regression models with life tables (with discussions);Cox;J. Roy. Statist. Soc. Ser. B,1972
5. Cox, D.R., Oakes, D., 1984. Analysis of Survival Data. Chapman and Hall, London.