@article {42314,
	title = {Wolves and people: assessing cumulative impacts of human disturbance on wolves in Jasper National Park},
	year = {1999},
	note = {1999 ESRI Users Conference},
	url = {http://www.esri.com/library/userconf/proc99/proceed/papers/pap317.htm},
	author = {Purves, H. and Doering, C.}
}
