@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 {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 {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 {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 {3669,
	title = {Environmental Control of Stomatal Conductance in Forest Trees of the Great Smoky Mountains National Park},
	journal = {Environmental Pollution},
	volume = {110},
	year = {2000},
	pages = {225-233},
	keywords = {Air quality, Oaks, Ozone, Trees},
	author = {Patterson, M. C and Samuelson, L. J and Somers, Greg L and Mays, A.}
}
@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}
}
