@book{126008,
	author = {Bart, Jonathan. and Fligner, Michael A. and ebrary, Inc.},
	title = {Sampling and statistical methods for behavioral ecologists},
	publisher = {Cambridge University Press,},
	year = {1998.},
	address = {Cambridge ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=2000695}
}