@article {2658,
	title = {Stone and Ulfsten v. Director, Northern Region, Regional Services, Alberta Environment, re: Imperial Oil Resources Limited, EnCana Corporation, Canadian Natural Resources Limited, Husky Oil Operations Limited, and Blackrock Ventures Inc.(now Shell Canada },
	journal = {Environmental Appeals Board.},
	year = {2009},
	author = {McAvity, E.O. and Barlishen, J. and Johnson, D.L.}
}