@article {4519,
	title = {Relative Role of Understory and Overstory in Carbon and Nitrogen Cycling in a Southern Appalachian Spruce-Fir Forest},
	journal = { Canadian Journal of Forest Research},
	volume = {37},
	year = {2007},
	note = {Maps},
	month = {December},
	pages = {2689-2700},
	keywords = {Fraser fir, Red spruce, Vegetation monitoring, Woolly adelgids},
	author = {Moore, Patrick T and Van Miegroet, Helga and Nicholas, Niki Stephanie}
}
@article {4221,
	title = {Regeneration of Fraser Fir After Thirty Years of Balsam Woolly Adelgid Infestation},
	year = {1995},
	month = {December 20},
	institution = {Great Smoky Mountains National Park},
	keywords = {Conservation, Fraser fir, Insects, Trees -- Growth, Woolly adelgids},
	author = {Smith, George F and Nicholas, Niki Stephanie}
}
@article {6291,
	title = {The Reliability of Tree Crown Position},
	journal = {Canadian Journal of Forest Research},
	volume = {21},
	year = {1991},
	pages = {689-701},
	keywords = {Forest canopy, Spruce-Fir forests, Trees},
	author = {Nicholas, Niki Stephanie and Gregoire, T. G and Zedaker, Shephard M}
}
