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Using GIS to Analyze the Precipitation Regime of the Great Smoky Mountains National Park, TN/NC In Plant and Soil Sciences. Knoxville, TN: University of Tennessee, 1995.
Characterization of Ambient Ozone Levels in the Great Smoky Mountains National Park." Journal of Applied Meteorology 33, no. 4 (1994): 465-472.
"Great Smoky Mountains National Park: Storms in the Smokies. Cornell Laboratory of Ornithology, 1994.
Appalachian Oak Forest." In Biodiversity of the Southeastern United States: Upland Terrestrial Communities, edited by William Haywood Martin, Stephen G. Boyce and Arthur C. Echternacht, 255-303. New York: John Wiley & Sons, Inc., 1993.
"Gradient Analysis of Old Spruce – Fir Forests of the Great Smoky Mountains circa 1935." Canadian Journal of Botany 71, no. 7 (1993): 951-958.
"Two Hundred Year Variation of Southern Red Spruce Radial Growth as Estimated by Spectral Analysis." Canadian Journal of Forest Research 23 (1993): 291-301.
"The Western North Carolina Almanac and Book of Lists. 2nd ed. Franklin, NC: Sanctuary Press, 1993.
The Dendroecology of Red Spruce Decline." In Ecology and Decline of Red Spruce in the Eastern United States, 192-231. Vol. 96. New York, NY: Springer-Verlag, 1992.
"The Effects of Atmospheric Deposition and Ozone on Carbon Allocation and Associated Physiological Processes in Red Spruce." In Ecology and Decline of Red Spruce in the Eastern United States, 338-382. Vol. 96. New York, NY: Springer-Verlag, 1992.
"Portraits in Winter Light." Wilderness 56, no. 199 (1992): 24.
"Soil Mediated Effects of Atmospheric Deposition on Eastern U.S. Spruce-Fir Forests." In Ecology and Decline of Red Spruce in the Eastern United States, 235-270. Vol. 96. New York, NY: Springer-Verlag, 1992.
"The Latitude-Elevation Relationship for Spruce-Fir Forest and Treeline along the Appalachian Mountain Chain." Vegetatio 94, no. 2 (1991): 153-175.
"Seasonal Changes in Shoot Water Relations of Picea rubens at Two High Elevation Sites in the Smoky Mountains." Tree Physiology 8, no. 1 (1991): 11-21.
"U.S. Geological Survey Global Change Hydrology Program In First Annual Southern Appalachian Man and the Biosphere Conference. Gatlinburg, TN: Tennessee Valley Authority, 1990.
Frost Hardiness of Picea rubens Growing in Spruce Decline Regions of the Appalachians." Tree Physiology 5, no. 1 (1989): 25-37.
"Proceedings Sixth Annual Gatlinburg Acid Rain Conference In Gatlinburg Acid Rain Conference. Gatlinburg, TN: Tennessee Valley Authority, 1989.
Radial trends in cation ratios in tree rings as indicators of the impact of atmospheric deposition on forests." Canadian Journal of Forest Research 19, no. 5 (1989): 556-594.
"Red Spruce Tree Ring Analysis Using a Kalman Filter In Analyses of Great Smoky Mountain Red Spruce Tree Ring Data. New Orleans, LA: U.S. Department of Agriculture, Forest Service, 1988.
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.
"History of Disturbance in Spruce-fir Forests of the SARRMC Intensive Study Sites -- Mt. Rogers National Recreation Area, Black Mountains, and Great Smoky Mountains. Southern Appalachian Spruce-fir Ecosystem Assessment Program, 1985.
Variation in Radial Growth of American Beech (Fagus grandifolia Ehrh.) at High Elevations inthe Great Smoky Mountains." Bulletin of the Torrey Botanical Club 112, no. 4 (1985): 398-402.
"Disturbance and Vegetation Response in Relation to Environmental Gradients in the Great Smoky Mountains." Vegetatio 55, no. 3 (1984): 129-139.
"Great Smoky Mountains Biosphere Reserve: A Bibliography of Scientific Studies, U.S. Man and the Biosphere Program In U.S. Man and the Biosphere Program. Cullowhee, NC: Western Carolina University, 1982.
Breeding Bird Populations in the Great Smoky Mountains, Tennessee and North Carolina." The Wilson Bulletin 93, no. 2 (1981): 218-242.
"A Survey of Ecological Inventory, Monitoring and Research in U.S. National Park Service Biosphere Reserves In Research/Resources Management Report. Gatlinburg, TN: U.S. Department of the Interior, National Park Service, 1981.