@article {29018,
	title = {Sulfur dioxide and forest vegetation},
	volume = {Information Report NOR-X-49},
	year = {1972},
	pages = {22},
	institution = {Canadian Forestry Service},
	address = {Edmonton, AB},
	author = {Loman, A. A. and Blauel, R. A. and Hocking, Drake}
}
