Ushkalov, V. F., L. G. Lapina, and I. A. Mashchenko. “Calculated Disturbances for Evaluation of Dynamical Properties of Freight Cars”. Science and Transport Progress , no. 4(46) (August 25, 2013): 135–144. Accessed May 4, 2024. https://stp.ust.edu.ua/article/view/16600.