Nguyen, Hong Thai, Thanh Trung Nguyen, Xuan Nghia Luu, and Thuy Duong Nguyen. “Profile Sliding Phenomenon in the External Non-Circular Gear-Train With Cycloidal Profile”. Engineering and Technology For Sustainable Development 31, no. 2 (April 15, 2021): 53–57. Accessed October 28, 2025. https://jst.vn/index.php/etsd/article/view/209.