@article {3887,
	title = {Taxonomy of Abies in the Southern Appalachians: Variation in Balsam Monoterpenes and Wood Properties},
	journal = {Forest Science},
	volume = {20},
	year = {1974},
	month = {March},
	pages = {32-40},
	keywords = {Fraser fir, Trees -- Classification and description},
	author = {Thor, Eyvind and Barnett, Paul E}
}
@article {3565,
	title = {American Chestnut in the Southern Appalachians},
	journal = {Journal of Forestry},
	volume = {65},
	year = {1967},
	note = {Ilustrations},
	month = {February},
	pages = {121-122},
	keywords = {Trees -- Classification and description, Trees -- Growth},
	author = {MacDonald, R. D and Thor, Eyvind}
}
