@article {4195, title = {The Effect of Balsam Woolly Aphid Infestation on Fuel Levels in Spruce-Fir Forests of Great Smoky Mountains National Park}, year = {1985}, month = {January}, institution = {National Park Service -- Southeast Region}, keywords = {Fraser fir, Insects, Pollution, Trees -- Decay, Woolly adelgids}, url = {http://www31.us.archive.org/details/effectofbalsamwo00nich}, author = {Nicholas, Niki Stephanie and White, Peter S} }