@article{publication-2069,
	author={Winkelmann, Rainer},
	doi={10.2307/1392392},
	issn={0735-0015},
	journal={Journal of Business & Economic Statistics},
	number=4,
	pages={467-474},
	publisher={American Statistical Association},
	title={Duration dependence and dispersion in count - data models},
	volume=13,
	year=1995,
}