@article {2989,
	title = {Predicting Rare Plant Occurrence in Great Smoky Mountains National Park, USA},
	journal = {Natural Areas Journal},
	volume = {23},
	year = {2003},
	month = {July},
	pages = {229-237},
	keywords = {Flowering plants, Geographic information systems, Vegetation monitoring},
	author = {Boetsch, John Roland and Van Manen, Frank Teunissen and Clark, Joseph D}
}
