@article {2323,
	title = {Effects of Disturbance by Visitors on Two Woodland Orchid Species in Great Smoky Mountains National Park, USA},
	journal = {Biological Conservation},
	volume = {31},
	year = {1985},
	pages = {211-227},
	keywords = {Conservation -- Surveying, Flowering plants},
	url = {http://www.sciencedirect.com/science/article/pii/0006320785900680},
	author = {Susan Power Bratton}
}
