@article{Sobel1990,
	title = {Dirichlet integrals and moments of gamma distribution order statistics},
	author = {Milton Sobel and Martin Wells},
	journal = {Statistics \& Probability Letters},
	month = {May},
	number = {5},
	pages = {431--437},
	url = {http://www.sciencedirect.com/science/article/B6V1D-45DB17P-2Y/1/a678207392eea594528e73a61c2fdbf4},
	volume = {9},
	year = {1990},
	biburl = {http://www.bibsonomy.org/bibtex/217a79675dd77647abd57c6638d3fffe8/smicha},
	keywords = {Dirichlet integrals }
}