@article {37831,
	title = {Bighorn sheep use of an open pit coal mine in the foothills of Alberta. Proceedings : Issues and Technology in the Management of Impacted Wildlife},
	volume = {Proc. V. 127},
	year = {1991},
	institution = {Thorne Ecological Institute},
	address = {Snowmass, CO},
	author = {MacCallum, Beth}
}
