Land, K. C., McCall, P. L. and Nagin, D. S. (1996). “A comparison of poisson, Negative
Binomial, and Semiparametic Mixed Poisson Regression Models with Empirical Applications
to Criminal Careers Data.” Sociological Methods and Research, Vol. 24, No. 2, pp.
387-442.10.1177/0049124196024004001Land, K. C., McCall, P. L. and Nagin, D. S. (1996).
“A comparison of poisson, Negative Binomial, and Semiparametic Mixed Poisson Regression
Models with Empirical Applications to Criminal Careers Data.” Sociological Methods
and Research, Vol. 24, No. 2, pp. 387-442.