CHATLATANAGULCHAI, W., and T. BENJALERSYARNON. “Closed-Loop Input Shaping With Quantitative Feedback Controller Applied to Slewed Two-Staged Pendulum”. Walailak Journal of Science and Technology (WJST), vol. 13, no. 8, Oct. 2015, pp. 595-13, https://wjst.wu.ac.th/index.php/wjst/article/view/1642.