@article {3134,
	title = {Predicting Treeline Elevation in the Southern Appalachians},
	journal = {Castanea},
	volume = {62},
	year = {1997},
	month = {September},
	pages = {137-146},
	keywords = {Climate, Trees},
	author = {Cogbill, Charles V and White, Peter S and Wiser, Susan K}
}
@inbook {4785,
	title = {Spruce-fir Forests of Eastern North America},
	booktitle = {Ecology and Decline of Red Spruce in the Eastern United States},
	volume = {96},
	year = {1992},
	pages = {3-39},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	address = {New York, NY},
	keywords = {Fraser fir, Logging, Red spruce, Spruce-Fir forests, Woolly adelgids},
	isbn = {0-387-97786-4},
	author = {White, Peter S and Cogbill, Charles V}
}
@article {4759,
	title = {The Latitude-Elevation Relationship for Spruce-Fir Forest and Treeline along the Appalachian Mountain Chain},
	journal = {Vegetatio},
	volume = {94},
	year = {1991},
	note = {Maps},
	month = {July},
	pages = {153-175},
	keywords = {Climate, Fraser fir, Red spruce, Spruce-Fir forests},
	author = {Cogbill, Charles V and White, Peter S}
}
