@article{Heller2007,
	title = {Posterior distribution for negative binomial parameter p using a
	group invariant prior},
	author = {B. Heller and M. Wang},
	journal = {Statistics \& Probability Letters},
	month = {Sep},
	number = {15},
	pages = {1542--1548},
	url = {http://www.sciencedirect.com/science/article/B6V1D-4NF7Y3F-7/1/b3c00c20076326dba951c5062d56ea36},
	volume = {77},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/2939e6856b2f2c87d5f97bf0db350a4e0/smicha},
	keywords = {Statistical inference }
}