Tho, Do Xuan, and Nguyen Van Khang. “Numerical Calculation of the Transverse Vibrations of the Multispan Beams for Moving Load”. <i>Vietnam Journal of Mechanics</i> 14, no. 3 (September 30, 1992): 26–33. Accessed November 9, 2025. https://vjmech.vast.vn/vjmech/article/view/10237.