Hart, J. M., Fritz, J. M., Kerrigan, D. C., Saliba, E. N., Gansneder, B. M., & Ingersoll, C. D. (2006). Reduced quadriceps activation after lumbar paraspinal fatiguing exercise. Journal of athletic training, 41(1), S. 79-86. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1421484/

Hart, Joseph M., Julie M. Fritz, D. Casey Kerrigan, Ethan N. Saliba, Bruce M. Gansneder, and Christopher D. Ingersoll. "Reduced Quadriceps Activation After Lumbar Paraspinal Fatiguing Exercise." Journal of Athletic Training 41, no. 1 (2006): S. 79-86.

Hart, Joseph M., et al. "Reduced Quadriceps Activation After Lumbar Paraspinal Fatiguing Exercise." Journal of Athletic Training 41.1 (2006): S. 79-86.