References
- Consul , P. C. and Jain , G. C. 1973 . A generalization of the Poisson distribution . Technometrics , 15 ( 4 ) : 791 – 799 .
- Jain , G. C. and Consul , P. C. 1971 . A generalized negative binomial distribution . SIAM J. Appl. Math. , 21 ( 4 ) : 501 – 513 .