@article {37426,
	title = {Environmental correlates of species distributions in a saxicolous lichen community},
	volume = {1},
	year = {1990},
	pages = {385-392},
	publisher = {Journal of Vegetation Science},
	url = {http://www.jstor.org/pss/3237261},
	author = {John, E. A. and Dale, M. R. T.}
}
