@article {3642,
	title = {Ambient Ozone Effects on Gas Exchange and Total Non-Structural Carbohydrate Levels in Cutleaf Coneflower                        (Rudbeckia laciniata L.) Growing in Great Smoky Mountains National                        Park},
	journal = {Environmental Pollution},
	volume = {160},
	year = {2012},
	pages = {74-81},
	keywords = {Flowering plants, Pollution},
	url = {http://www.sciencedirect.com/science/article/pii/S0269749111005161},
	author = {Neufeld, Howard S and Peoples, Seth J and Davidson, Alan W and Chappelka, Arthur H and Somers, Greg L and Thomley, Jill E and Booker, Fitzgerald L}
}
@article {3984,
	title = {Impacts of Climatic and Atmospheric Changes on Carbon Dynamics in the Great Smoky Mountains National Park},
	journal = {Environmental Pollution},
	volume = {149},
	year = {2007},
	note = {Maps},
	month = {October},
	pages = {336-347},
	keywords = {Climate, Ecosystem, Pollution},
	url = {http://ac.els-cdn.com/S0269749107002576/1-s2.0-S0269749107002576-main.pdf?_tid=e0646a34d5f6fa2fcca7a6722bb7db67\&acdnat=1340643160_92409d75c9aa519b04f72308129df10e},
	author = {Zhang, Chi and Tian, H. Q and Chappelka, Arthur H and Ren, W. and Chen, H. and Pan, S. F and Liu, M. L and Styers, D. M and Chen, G. S and Wang, Y. H}
}
@article {3295,
	title = {Stomatal Behavior of Ozone-Sensitive and -Insensitive Coneflowers (Rudbeckia laciniata var. digitata) in Great Smoky Mountains National Park},
	journal = {New Phytologist},
	volume = {173},
	year = {2007},
	pages = {100-109},
	keywords = {Flowering plants, Ozone, Vegetation monitoring},
	author = {Grulke, N. E and Neufeld, Howard S and Davison, Alan W and Roberts, M. and Chappelka, Arthur H}
}
@article {3119,
	title = {Temporal Patterns of Foliar Ozone Smptoms on Tall Milkweed (Asclepias exaltata L.) in Great Smoky Mountains National Park},
	journal = {Environmental Pollution},
	volume = {149},
	year = {2007},
	month = {October},
	pages = {358-365},
	keywords = {Air quality, Ecosystem, Flora, Topography, Trails},
	author = {Chappelka, Arthur H and Somers, Greg L and Renfro, James R}
}
@article {3850,
	title = {Seasonal Development of Ozone-Induced Foliar Injury on Tall Milkweed (Asclepias exaltata) in Great Smoky Mountains National Park},
	journal = {Environmental Pollution},
	volume = {141},
	year = {2006},
	month = {May},
	pages = {175-183},
	keywords = {Air quality, Flora, Ozone},
	author = {Souza, Lara and Neufeld, Howard S and Chappelka, Arthur H and Burkey, Kent O and Davison, Alan W}
}
@article {3059,
	title = {Seasonal Profiles of Leaf Ascorbic Acid Content and Redox State in Ozone-Sensitive Wildflowers},
	journal = {Environmental Pollution},
	volume = {143},
	year = {2006},
	month = {October},
	pages = {427-434},
	keywords = {Acid rain, Flora, Flowering plants},
	author = {Burkey, Kent O and Neufeld, Howard S and Souza, Lara and Chappelka, Arthur H and Davison, Alan W}
}
@article {6105,
	title = {Visible Foliar Injury Caused by Ozone Alters the Relationship between SPAD Meter Readings and Chlorophyll Concentrations in Cutleaf Coneflower},
	journal = {Photosynthesis Research},
	volume = {87},
	year = {2006},
	month = {March},
	pages = {281-286},
	keywords = {Air pollution, Flowering plants, Ozone},
	author = {Neufeld, Howard S and Chappelka, Arthur H and Somers, Greg L and Burkey, Kent O and Davidson, Alan W and Finkelstein, Peter L}
}
@article {3243,
	title = {Sub-Canopy Deposition of Ozone in a Stand of Cutleaf Coneflower},
	journal = {Environmental Pollution},
	volume = {131},
	year = {2004},
	month = {September},
	pages = {295-303},
	keywords = {Air quality, Flora, Ozone, Pollution},
	url = {http://dx.doi.org/10.1016/j.envpol.2004.02.029},
	author = {Finkelstein, Peter L and Davison, Alan W and Neufeld, Howard S and Meyers, Tilden P and Chappelka, Arthur H}
}
@article {3171,
	title = {Interpreting Spatial Variation in Ozone Symptoms Shown by Cutleaf Cone Flower, Rudbeckia laciniata L},
	journal = {Environmental Pollution},
	volume = {125},
	year = {2003},
	pages = {61-70},
	keywords = {Air quality, Ecosystem, Flora, Flowering plants, Ozone, Pollution},
	author = {Davison, Alan W and Neufeld, Howard S and Chappelka, Arthur H and Wolff, K. and Finkelstein, Peter L}
}
@article {3118,
	title = {Ozone Injury on Cutleaf Coneflower (Rudbeckia laciniata) and Crown-Beard (Verbesina occidentalis) in Great Smoky Mountains National Park},
	journal = {Environmental Pollution},
	volume = {125},
	year = {2003},
	pages = {53-59},
	keywords = {Air quality, Cherokee Orchard, Clingmans Dome, Flora, Pollution},
	author = {Chappelka, Arthur H and Neufeld, Howard S and Davison, Alan W and Somers, Greg L and Renfro, James R}
}
@article {5232,
	title = {Mature Black Cherry Used as a Bioindicator of Ozone Injury},
	journal = {Water, Air, and Soil Pollution},
	volume = {116},
	year = {1999},
	month = {November},
	pages = {261-266},
	publisher = {Springer},
	keywords = {Black cherry, Ozone, Pollution},
	author = {Chappelka, Arthur H and Skelly, John M and Somers, Greg L and Renfro, James R and Hildebrand, Elisabeth}
}
@article {3117,
	title = {Visible Ozone Injury on Forest Trees in Great Smoky Mountains National Park, USA},
	journal = {Water Air and Soil Pollution},
	volume = {116},
	year = {1999},
	month = {November},
	pages = {255-260},
	keywords = {Cove Mountain, Ecosystem, Ozone},
	url = {http://www.springerlink.com/content/j014vr70431r11t7/},
	author = {Chappelka, Arthur H and Somers, Greg L and Renfro, James R}
}
@article {5238,
	title = {Empirical Evidence of Growth Decline Related to Visible Ozone Injury},
	journal = {Forest Ecology and Management},
	volume = {104},
	year = {1998},
	month = {May 12},
	pages = {129},
	publisher = {Elsevier},
	keywords = {Black cherry, Ozone, Poplars, Trees -- Growth decline},
	author = {Chappelka, Arthur H and Somers, Greg L and Renfro, James R and Rosseau, P.}
}
@article {3116,
	title = {Evaluation of Ozone Injury on Foliage of Black Cherry (Prunus serotina) and Tall Milkweed (Asclepias exaltata) in Great Smoky Mountains National Park},
	journal = {Environmental Pollution},
	volume = {95},
	year = {1997},
	pages = {13-18},
	keywords = {Air quality, Flora, Forests, Pollution},
	author = {Chappelka, Arthur H and Renfro, James R and Somers, Greg L and Nash, Bruce}
}
@proceedings {6081,
	title = {Effects of the Ambient Ozone Concentrations on Mature Eastern Hardwood Trees Growing in Great Smoky Mountains},
	journal = {85th Annual Meeting and Exhibition, Air and Waste Management Association},
	year = {1992},
	note = {Chappelka is from Auburn University, Hildebrand and Skelly are from Penn State, Mangis is from National Park Service, Lakewood, Colorado, Renfro is from National Park Service, Gatlinburg},
	month = {June 21-26},
	address = {Kansas City, Missouri},
	keywords = {Air quality, Hardwood forests, Ozone},
	author = {Chappelka, Arthur H and Hildebrand, Elisabeth and Skelly, John M and Mangis, Deborah and Renfro, James R}
}
@proceedings {5350,
	title = {Ozone Biomonitoring Trend Plots and Surveys in Great Smoky Mountains National Park},
	journal = {Third Annual Southern Appalachian Man and the Biosphere Conference},
	year = {1992},
	month = {November},
	pages = {45},
	publisher = {Tennessee Valley Authority},
	address = {Gatlinburg, TN},
	keywords = {Air pollution, Ozone, Trees -- Growth decline, Vegetation monitoring},
	author = {Chappelka, Arthur H and Renfro, James R}
}
