@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}
}
@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}
}
@conference {11810,
	title = {Impact of Photochemical Oxidant to White Pine in the Shenandoah, Blue Ridge Parkway, and Great Smoky Mountains National Parks},
	booktitle = {2nd Conference on Scientific Research in the National Parks},
	year = {1979},
	month = {November 26-30},
	pages = {131},
	publisher = {Virginia Polytechnic Institute},
	organization = {Virginia Polytechnic Institute},
	keywords = {Air quality, Pine-Oak forests, Vegetation monitoring},
	author = {Skelly, John M and Duchelle, Steve and Kress, Lance W}
}
@conference {11848,
	title = {Air Quality Measurements in the Blue Ridge Mountains and the Great Smoky Mountains National Park and Relationships to Vegetation Injury},
	booktitle = {4th Annual Science Research Meeting},
	year = {1978},
	publisher = {Department of the Interior, National Park Service },
	organization = {Department of the Interior, National Park Service },
	keywords = {Air quality, Flora},
	author = {Skelly, John M}
}
