@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 {4115,
	title = {A Survey of Radial Growth Trends in Spruce in the Great Smoky Mountains National Park as Influenced by Topography, Age, and Stand Development},
	year = {1990},
	note = {Illustrations},
	institution = {U.S. Department of Energy},
	address = {Oak Ridge National Laboratory},
	abstract = {<p>A survey of red spruce growth trends at several sites in the Great Smoky Mountains National Park (GSMNP) was undertaken to determine the relationship of the magnitude and timing of changes in annual radial increment to elevation, aspect, tree age, mortality, and competitive status. The growth changes observed suggest responses to changes in climate (principally temperature) or atmospheric pollution acting individually or, more likely, in combination. Major emphasis on these potential causes is warranted in future studies. 56 refs., 8 figs., 11 tabs.</p>},
	keywords = {Red spruce, Trees, Trees -- Growth},
	author = {Adams, Harold S and McLaughlin, Samuel B and Blasing, T. J and Duvick, D. N}
}
@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}
}
@article {2324,
	title = {Growth-trend Declines of Spruce and Fir in Mid-Appalachian Subalpine Forests},
	journal = {Environmental and Experimental Botany},
	volume = {25},
	year = {1985},
	pages = {315-325},
	keywords = {Fraser fir, Red spruce, Trees -- Growth},
	url = {http://www.sciencedirect.com/science/article/pii/0098847285900292},
	author = {Harold S Adams and Stephenson, Steven L and Blasing, T. J and Duvick, D. N}
}
