W. Ford, Mark, Christine A. Kelly, Jane L. Rodrigue, Richard H. Odom, Douglas Newcomb, Michelle L. Gilley, and Corinne A. Diggins. "Late Winter and Early Spring Home Range and Habitat Use of the Endangered Carolina Northern Flying Squirrel in Western North Carolina." Endangered Species Research 23, no. 1 (2014): 73-82.

Alsop, Fred J.. "Changes in the Spruce-fir Avifauna of Mt. Guyot, Tennessee, 1967-1985." Journal of the Tennessee Academy of Science 66, no. 4 (1991): 207-209.

Pyle, Charlotte, and Michael P. Schafale. History of Disturbance in Spruce-fir Forests of the SARRMC Intensive Study Sites -- Mt. Rogers National Recreation Area, Black Mountains, and Great Smoky Mountains. Southern Appalachian Spruce-fir Ecosystem Assessment Program, 1985.

Pyle, Charlotte. Pre-Park Disturbance in the Spruce-Fir Forests of Great Smoky Mountains National Park In The Southern Appalachian Spruce-Fir Ecosystem: Its Biology and Threats. Gatlinburg, TN: Uplands Field Research Laboratory, 1984.

DeSelm, H. R., and R. R. Boner. Understory Change in Spruce-Fir During the First 16-20 Years Following the Death of Fir In The Southern Appalachian Spruce-Fir Ecosystem: Its Biology and Threats. Gatlinburg, TN: Uplands Field Research Laboratory, 1984.

Runkle, James Reade. "Patterns of Disturbance in Some Old-Growth Mesic Forests of Eastern North America." Ecology 63, no. 5 (1982): 1533-1546.

Barden, Lawrence S.. "Tree Replacement in a Cove Hardwood Forest of the Southern Appalachians." Oikos 35, no. 1 (1980): 16-19.

Great Smoky Mountains National Park. Spruce-Fir: Self-Guiding Nature Trail. Great Smoky Mountains Natural History Association, 1965.

Great Smoky Mountains National Park. Spruce-Fir: Self-Guiding Nature Trail. Great Smoky Mountains Natural History Association, 1965.

Great Smoky Mountains National Park. The Spruce-Fir Nature Trail. Great Smoky Mountains Natural History Association, 1963.

Stupka, Arthur. "Trees of the Smoky Mountains." The Tennessee Conservationist 27, no. 7 (1962): 8-10.

Sharp, Aaron J.. "Vascular Epiphytes in the Great Smoky Mountains." Ecology 38, no. 4 (1957): 654-655.

Cooley, Everette H.. A Study of Plant Distribution Patterns at a Mid-Altitude Location in the Great Smoky Mountains National Park. Knoxville, TN: The University of Tennessee, 1954.

Cain, Stanley A.. "An Interesting Behavior of Yellow Birch in the Great Smoky Mountains." The Chicago Naturalist 3, no. 1 (1940): 20-21.