@article {6333,
	title = {Productivities of Plant Communities in the Great Smoky Mountains},
	year = {1962},
	institution = {National Science Foundation},
	address = {New York},
	keywords = {Flora, Forests, Shrubs, Vegetation monitoring},
	url = {http://diglib.lib.utk.edu/dotsdata/Whittaker_FinalReportProductivitiesOfPlantCommunities_1962.pdf},
	author = {Robert Harding Whittaker}
}
