Ingersoll, C. D., Knight, K. L., & Merrick, M. A. (1992). Sensory perception of the foot and ankle following therapeutic applications of heat and cold. Journal of athletic training, 27(3), S. 231-234. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1317251/pdf/jathtrain00035-0041.pdf

Ingersoll, Christopher D., Kenneth L. Knight, and Mark A. Merrick. "Sensory Perception of the Foot and Ankle Following Therapeutic Applications of Heat and Cold." Journal of Athletic Training 27, no. 3 (1992): S. 231-234.

Ingersoll, Christopher D., Kenneth L. Knight, and Mark A. Merrick. "Sensory Perception of the Foot and Ankle Following Therapeutic Applications of Heat and Cold." Journal of Athletic Training 27.3 (1992): S. 231-234.