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Trace Metal Uptake and Accumulation in Trees as Affected by Environmental Pollution. Oak Ridge, TN: Oak Ridge National Laboratory, National Park Service, U. S. Department of the Interior, Undated.
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.
Interactive Effects of Natural and Anthropogenic Factors on Growth and Physiology of Southern Red Spruce. Environmental Sciences Division, Oak Ridge National Labratory and Phyton Technologies, Oak Ridge, Tenn., 1987.
Effects of Acidic Precipitation on the Soil Chemistry and Bioavailability of Aluminum, Manganese, and Copper. Oak Ridge, TN: Oak Ridge National Laboratory, 1990.
"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.
"Trace Elements in Tree Rings: Evidence of Recent and Historical Air Pollution." Science 224, no. 4648 (1984): 494-497.
"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.
"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.
"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.
"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.
"Interactive Effects of Ozone and Climate on Water Use, Soil Moisture Content and Streamflow in a Southern Appalachian Forest in the USA." New Phytologist 174, no. 1 (2007): 125-136.
"Interactive Effects of Ozone and Climate on Tree Growth and Water Use in a Southern Appalachian Forest in the USA." New Phytologist 174 (2007): 109-124.
"Increased Dark Respiration and Calcium Deficiency of Red Spruce in Relation to Acidic Deposition at High-elevation Southern Appalachian Mountain Sites." Canadian Journal of Forest Research 21 (1991): 1234-1244.
"Growth and Physiological Changes in Red Spruce Saplings Associated with Acidic Deposition at High Elevations in the Southern Appalachians, USA." Forest Ecology and Management 51, no. 1-3 (1992): 43-51.
"A Comparison of Seasonal Patterns of Photosynthate Production and Use in Branches of Red Spruce Saplings at Two Elevations." Canadian Journal of Forest Research 21, no. 4 (1991): 455-461.
"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.
"Acid Deposition Alters Red Spruce Physiology: Laboratory Studies Support Field Observations." Canadian Journal of Forest Research 23, no. 3 (1993): 380-386.
Interactive Effects of Natural and Anthropogenic Factors on Growth and Physiology of Southern Red Spruce In US/FRG Research Symposium: Effects of Atmospheric Pollutants on the Spruce-Fir Forests of the Eastern United States and the Federal Republic of Germany: October 19-23, 1987, Edited by Gerard Hertel. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1988.
"A Survey of Growth-Trend Decline in Spruce in the Great Smoky Mountains National Park as Influenced by Topography, Age, and Stand Development." In Eleventh Annual Scientific Research Meeting, edited by James D. Wood, 38-40. Gatlinburg, Tennessee: U.S. Department of the Interior National Park Service, 1985.
"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.
