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An Analysis of Climate and Competition as Contributors to Decline of Red Spruce in High Elevation Appalachian Forests of the Eastern United States." Oecologia 72, no. 4 (1987): 487-501.
"Growth-trend Declines of Spruce and Fir in Mid-Appalachian Subalpine Forests." Environmental and Experimental Botany 25, no. 4 (1985): 315-325.
"Two Hundred Year Variation of Southern Red Spruce Radial Growth as Estimated by Spectral Analysis: Comment." Canadian Journal of Forest Research 24, no. 11 (1994): 2299-2304.
"A Survey of Radial Growth Trends in Spruce in the Great Smoky Mountains National Park as Influenced by Topography, Age, and Stand Development. Oak Ridge National Laboratory: U.S. Department of Energy, 1990.