Norcross, M. F., Lewek, M. D., Padua, D. A., Shultz, S. J., Weinhold, P. S., & Blackburn, J. T. (2013). Lower extremity energy absorption and biomechanics during landing, part I: Sagittal-plane energy absorption analyses. Journal of athletic training, 48(6), S. 748-756. doi:10.4085/1062-6050-48.4.09

Norcross, Marc F., Michael D. Lewek, Darin A. Padua, Sandra J. Shultz, Paul S. Weinhold, and J. Troy Blackburn. "Lower Extremity Energy Absorption and Biomechanics During Landing, Part I: Sagittal-plane Energy Absorption Analyses." Journal of Athletic Training 48, no. 6 (2013): S. 748-756.

Norcross, Marc F., et al. "Lower Extremity Energy Absorption and Biomechanics During Landing, Part I: Sagittal-plane Energy Absorption Analyses." Journal of Athletic Training 48.6 (2013): S. 748-756.