Do, Phu, Long Mai, Chi Le, and Thang Tran. “Dynamic Analysis of Knee-Exoskeleton and Its Implementation to Design of Magnetorheological Damper”. Science and Technology Development Journal 21, no. 1 (June 2, 2018): 02-14. Accessed September 28, 2021. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/421.