@article {3595,
	title = {Two Hundred Year Variation of Southern Red Spruce Radial Growth as Estimated by Spectral Analysis: Comment},
	journal = {Canadian Journal of Forest Research},
	volume = {24},
	year = {1994},
	month = {November},
	pages = {2299-2304},
	keywords = {Red spruce, Trees -- Growth},
	author = {McLaughlin, Samuel B and Blasing, T. J and Downing, D. J}
}
@article {4629,
	title = {An Analysis of Climate and Competition as Contributors to Decline of Red Spruce in High Elevation Appalachian Forests of the Eastern United States},
	journal = {Oecologia},
	volume = {72},
	year = {1987},
	pages = {487-501},
	keywords = {Climate, Red spruce, Trees -- Growth decline},
	author = {McLaughlin, Samuel B and Downing, D. J and Blasing, T. J and Cook, Edward R and Adams, Harold S}
}
