Tsai, W.-C., T.-F. Shao, Y.-S. Lee, and C.-H. CHEN. “The Effect of Hub Design on Lower Limb Muscle Activation While Riding on Different Terrain”. Journal of Science and Cycling, vol. 8, no. 2, Aug. 2019, pp. 34-36, https://jsc-journal.com/index.php/JSC/article/view/475.