Chow, J., Darling, W., & Hay, J. (1997). Mechanical characteristics of knee extension exercises performed on an isokinetic dynamometer. Medicine and science in sports and exercise, 29(6), S. 794-803.

Chow, J.W., W.G Darling, and J.G Hay. "Mechanical Characteristics of Knee Extension Exercises Performed On an Isokinetic Dynamometer." Medicine and Science in Sports and Exercise 29, no. 6 (1997): S. 794-803.

Chow, J.W., W.G Darling, and J.G Hay. "Mechanical Characteristics of Knee Extension Exercises Performed On an Isokinetic Dynamometer." Medicine and Science in Sports and Exercise 29.6 (1997): S. 794-803.