1.
Chen F-C, Tzeng Y-F, Hsu M-H. Innovative Design of an Elliptical Trainer with Right Timing of the Foot Trajectory. Adv. technol. innov. [Internet]. 2020Jul.1 [cited 2021Apr.21];5(3):190-01. Available from: https://ojs.imeti.org/index.php/AITI/article/view/5645