@article {95,
	title = {Periphyton assemblages as bioindicators of mine-drainage in unglaciated Western Allegheny Plateau lotic systems},
	journal = {Water, Air, and Soil Pollution},
	volume = {161},
	year = {2005},
	chapter = {227-265},
	author = {Verb, R.G. and Vis, M. L.}
}
