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Growth Patterns of Red Spruce Populations in Two Spruce-Fir Forest Stands in the Great Smoky Mountains National Park. Knoxville, TN: University of Tennessee, 1988.
Land Use History of Three Spruce-Fir Forest Sites in Southern Appalachia." Journal of Forest History 32, no. 1 (1988): 4-21.
"Southern Appalachian Red Spruce--Fraser Fir Forests In Analyses of Great Smoky Mountain Red Spruce Tree Ring Data. New Orleans, LA: U.S. Department of Agriculture, Forest Service,, 1988.
Two Decades of Change in a Great Smoky Mountains Spruce-Fir Forest." Bulletin of the Torrey Botanical Club 115, no. 1 (1988): 25-31.
"Assessment of Forest Decline in the Southern Appalachian Spruce-Fir Forest, USA." In Air Pollution and Forest Decline: Proceedings of the 14th International Meeting for Specialists in Air Pollution Effects on Forest Ecosystems, International Union of Forest Research O, 239-44. Birmensdorf, Switzerland: Eidgenössische Anstalt für das forstliche Versuchswesen, 1989.
"Does Rubus Canadensis Interfere with The Growth of Fraser Fir Seedlings?. Knoxville, TN: The University of Tennessee, 1989.
Nitrogen Mineralization in High Elevation Forests of the Appalachians. I. Regional Patterns in Southern Spruce-Fir Forests." Biogeochemistry 7, no. 2 (1989): 131-145.
"Forest Decline and Regeneration Success of the Great Smoky Mountains Spruce-Fir In First Annual Southern Appalachian Man and the Biosphere Conference. Gatlinburg, TN: Tennessee Valley Authority, 1990.
Nitrogen Dynamics in High-Elevation Spruce Sites in the Great Smoky Mountains National Park In First Annual Southern Appalachian Man and the Biosphere Conference. Gatlinburg, TN: Tennessee Valley Authority, 1990.
The Relationship Between Stand Age and Soil Nitrate Levels in High Elevation Red Spruce In First Annual Southern Appalachian Man and the Biosphere Conference. Gatlinburg, TN: Tennessee Valley Authority, 1990.
Seasonal Patterns of Photosynthesis and Respiration of Red Spruce Saplings from Two Elevations in Declining Southern Appalachian Stands." Canadian Journal of Forest Research 20, no. 5 (1990): 485-495.
"High-Elevation Forest Soils of the Southern Appalachians: I. Distribution of Parent Materials and Soil-Landscape Relationships." Soil Science Society of America Journal 55, no. 6 (1991): 1629-1637.
"High-Elevation Forest Soils of the Southern Appalachians: II. Geomorphology, Pedogenesis, and Clay Mineralogy." Soil Science Society of America Journal 55, no. 6 (1991): 1782-1791.
"The Latitude-Elevation Relationship for Spruce-Fir Forest and Treeline along the Appalachian Mountain Chain." Vegetatio 94, no. 2 (1991): 153-175.
"The Reliability of Tree Crown Position." Canadian Journal of Forest Research 21, no. 5 (1991): 689-701.
"Characterization of Eastern U.S. Spruce-Fir Soils." In Ecology and Decline of Red Spruce in the Eastern United States, 40-63. Vol. 96. New York, NY: Springer-Verlag, 1992.
"A Comparison of Overstory Community Structure in Three Southern Appalachian Spruce-Fir Forests." Bulletin of the Torrey Botanical Club 119, no. 3 (1992): 316-332.
"Condition and Recent Trends in High-Elevation Red Spruce Populations." In Ecology and Decline of Red Spruce in the Eastern United States, 125-191. Vol. 96. New York, NY: Springer-Verlag, 1992.
"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.
"Nitrate and Sulfate Export from a Great Smoky Mountains Spruce-Fir Watershed." In Fifth Tennessee Water Resources Symposium, 66-72. Nashville, TN: American Water Resources Association - Tennessee Section, 1992.
"Nitrate Export from a Great Smoky Mountain Spruce-Fir Watershed In Third Annual Southern Appalachian Man and the Biosphere Conference. Gatlinburg, TN: Tennessee Valley Authority, 1992.
Seasonal variation in nitrate reductase activity in needles of high-elevation red spruce trees." Canadian Journal of Forest Research 22, no. 3 (1992): 375-380.
"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.
"Spruce-fir Forests of Eastern North America." In Ecology and Decline of Red Spruce in the Eastern United States, 3-39. Vol. 96. New York, NY: Springer-Verlag, 1992.
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