@article {6096,
	title = {Great Smoky Mountains Plants Studies for Ozone Sensitivity},
	journal = {Park Science:  A Resource Management Bulletin},
	volume = {12},
	year = {1992},
	month = {Winter},
	pages = {6-7},
	keywords = {Air pollution, Flora, Ozone},
	author = {Hacker, W. David and Renfro, James R}
}
@proceedings {5361,
	title = {Ozone Response of Selected Plant Species from the Great Smoky Mountains National Park},
	journal = {First Annual Southern Appalachian Man and the Biosphere Conference},
	year = {1990},
	month = {November},
	pages = {40},
	publisher = {Tennessee Valley Authority},
	address = {Gatlinburg, TN},
	keywords = {Air pollution, Flora, Ozone},
	author = {Hacker, W. David and Renfro, James R}
}
