@article {5038, title = {Habitat Modeling and Protection of American Ginseng (Panax quinquefolius L.) in Great Smoky Mountains National Park}, year = {1999}, note = {Illustrations, Maps}, month = {December}, institution = {U.S. National Park Service}, address = {Gatlinburg, TN}, keywords = {Botany, Conservation, Flora, Ginseng}, url = {http://archive.org/details/habitatmodelingp00rock}, author = {Rock, Janet H and Hornbeck, J Hope and Tietjen, Jennifer and Choberka, Erica Renee Grimm} }