Zhang, Zilong, and C. Steve Suh. “Underactuated Mechanical Systems -- A Review of Control Design”. Journal of Vibration Testing and System Dynamics 6, no. 1 (August 17, 2026): 21–51. Accessed August 17, 2026. https://lhscientificpublishing.com/index.php/jvtsd/article/view/125.