Le Thi Hong Gam, Dam Hai Quan, Bui Trung Thanh, and Pham Van Bach Ngoc. “MATHEMATICAL MODELING AND SIMULATION OF A 3 DOFS LOWER LIMB REHABILITATION ROBOT FOR POST-STROKE PATIENT”. UTEHY Journal of Science and Technology, Vol. 21, Apr. 2019, pp. 8-14, https://tapchi.utehy.edu.vn/index.php/jst/article/view/3.