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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.
"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.
"Stomatal Behavior of Ozone-Sensitive and -Insensitive Coneflowers (Rudbeckia laciniata var. digitata) in Great Smoky Mountains National Park." New Phytologist 173, no. 1 (2007): 100-109.
"Seasonal Development of Ozone-Induced Foliar Injury on Tall Milkweed (Asclepias exaltata) in Great Smoky Mountains National Park." Environmental Pollution 141, no. 1 (2006): 175-183.
"Visible Foliar Injury Caused by Ozone Alters the Relationship between SPAD Meter Readings and Chlorophyll Concentrations in Cutleaf Coneflower." Photosynthesis Research 87, no. 3 (2006): 281-286.
"Using Scenarios to Assess the Impact of Air Pollution in the Great Smoky Mountains National Park." Public Works Management & Policy 10, no. 2 (2005): 170-185.
"The Effect of Switching Mobile Sources to Natural Gas on the Ozone in the Great Smoky Mountains National Park." Proceedings of the Air and Waste Management Association's Anual Meeting and Exhibition (2004): 5247-5259.
"Sub-Canopy Deposition of Ozone in a Stand of Cutleaf Coneflower." Environmental Pollution 131, no. 2 (2004): 295-303.
"Interpreting Spatial Variation in Ozone Symptoms Shown by Cutleaf Cone Flower, Rudbeckia laciniata L." Environmental Pollution 125, no. 1 (2003): 61-70.
"Nonmethane Hydrocarbons and Ozone in Three Rural Southeast United States National Parks: A Model Sensitivity Analysis and Comparison to Measurements." Journal of Geophysical Research-Atmospheres 108, no. D19 (2003): 1-17.
"Ten Most Endangered." National Parks 77, no. 3-4 (2003): 24-25.
"Code Red: America's Five Most Polluted National Parks. Appalachian Voices, National Parks Conservation Association, Our Children's Earth Foundation, 2002.
Bad Air Days." National Parks 75, no. 5-6 (2001): 32-35.
"The Effects of Ozone on a Lower Slope Forest of the Great Smoky Mountain National Park: Simulations Linking an Individual Tree Model to a Stand Model." Forest Science 47, no. 1 (2001): 29-42.
"Great Smoky Mountains National Park Look Rock: 2001 National Park Service Gaseous Air Pollutant Monitoring Network In Annual Data Summary. Lakewood, CO: National Park Service, 2001.
Nonmethane Hydrocarbons in the Rural Southeast United States National Parks." Journal of Geophysical Research-Atmospheres 106, no. D3 (2001): 3133-3155.
"Purple Heart." Wildlife in North Carolina 65, no. 3 (2001): 12-15.
"Environmental Control of Stomatal Conductance in Forest Trees of the Great Smoky Mountains National Park." Environmental Pollution 110, no. 2 (2000): 225-233.
"Seedling Insensitivity to Ozone for Three Conifer Species Native to Great Smoky Mountains National Park." Environmental Pollution 108, no. 2 (2000): 141-151.
"Unhealthy Air Awaits Visitors at Great Smokies." National Parks 74, no. 7-8 (2000): 11-12.
"Habitat Modeling and Conservation of Four Vascular Plants Endemic to the Southern Appalachian Mountains in Great Smoky Mountains National Park. Gatlinburg, TN: National Park Service, 1999.
Mature Black Cherry Used as a Bioindicator of Ozone Injury." Water, Air, and Soil Pollution 116, no. 1-2 (1999): 261-266.
"Visible Ozone Injury on Forest Trees in Great Smoky Mountains National Park, USA." Water Air and Soil Pollution 116, no. 1-2 (1999): 255-260.
"Empirical Evidence of Growth Decline Related to Visible Ozone Injury." Forest Ecology and Management 104, no. 1-3 (1998): 129.
"Terra Firma." Hellbender Press 1 (1998): 10, 15.
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