Khang, Nguyen Van, Nguyen Phong Dien, and Nguyen Sy Nam. “An Efficient Numerical Procedure for Calculating Periodic Vibrations of Elastic Mechanisms”. Vietnam Journal of Mechanics 38, no. 1 (March 15, 2016): 15–25. Accessed November 8, 2025. https://vjmech.vast.vn/vjmech/article/view/5928.