In-cheol, J., Oh-yun, K., Chung-Hwi, Y., Heon-Seock, C., & Ui-jae, H. (2015). Ankle-dorsiflexion range of motion after ankle self-stretching using a strap. Journal of athletic training, 50(12), S. 1226-1232. doi:10.4085/1062-6050-51.1.01

In-cheol, Jeon, Kwon Oh-yun, Yi Chung-Hwi, Cynn Heon-Seock, and Hwang Ui-jae. "Ankle-dorsiflexion Range of Motion After Ankle Self-stretching Using a Strap." Journal of Athletic Training 50, no. 12 (2015): S. 1226-1232.

In-cheol, Jeon, et al. "Ankle-dorsiflexion Range of Motion After Ankle Self-stretching Using a Strap." Journal of Athletic Training 50.12 (2015): S. 1226-1232.