@book{137377,
	author = {Pestman, Wiebe R., and Alberink, Ivo B.,},
	title = {Mathematical statistics :},
	publisher = {Walter de Gruyter,},
	year = {1998.},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10789692}
}