@article {32652,
	title = {Primary productivity, sulphur dioxide and the forest ecosystem : an overview of a case study. In: Proceedings of the Symposium on Effects of Air Pollutants on Mediterranean and Temperate Forest Ecosystems, 22-27 June 1980, Riverside, Calif., technical coo},
	volume = {USDA For. Ser. Gen. Tech. Rep. PSW-43},
	year = {1980},
	pages = {51-62},
	institution = {Pacific Southwest Forest and Range Experimental Station},
	author = {Legge, A. H.}
}
