@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.} } @mastersthesis {5737, title = {Comparison of Forest Cover Prior to and Following Disturbance in Two Areas of the Great Smoky Mountains National Park}, year = {1978}, month = {August}, school = {University of Tennessee}, type = {Masters of Science}, address = {Knoxville, TN}, keywords = {Forests, Hardwood forests, Little River, Logging, Poplars, Spruce-Fir forests}, url = {http://trace.tennessee.edu/utk_gradthes/1480/}, author = {McCracken, Weaver H} } @article {8221, title = {One of the large poplar trees along trail to Ramsey Falls.}, year = {1936}, month = {June 14, 1936}, publisher = {Albert Gordon "Dutch" Roth Digital Photograph Collection}, type = {Photograph}, address = {The University of Tennessee Libraries Digital Collections}, abstract = {}, keywords = {Greenbrier Cove, Poplars, Ramsey Cascades Trail}, url = {http://idserver.utk.edu/?id=200300000002485}, author = {Albert "Dutch" Gordon Roth} }