Dien, Nguyen Phong, and Nguyen Van Khang. “Dynamic Force Analysis of a Six-Link Planar Mechanism under Consideration of Friction at the Joints”. Vietnam Journal of Mechanics 26, no. 2 (July 1, 2004): 65–75. Accessed November 8, 2025. https://vjmech.vast.vn/vjmech/article/view/5690.