@article {31672,
	title = {Terrestrial mosses as bioindicators of SO synecological analysis and the index of atmospheric purity},
	volume = {35},
	year = {1978},
	pages = {311-325},
	publisher = {Oecologia},
	url = {http://www.springerlink.com/content/t54600r2408665k4/fulltext.pdf},
	author = {Winner, W. E. and Bewley, J. D.}
}
