Markul, R. V., N. P. Nastechik, V. V. Kovalchuk, and Y. M. Hnativ. “Investigation of KPP-5 Rail Fastener Elastic Deformation”. International Journal of Automotive and Mechanical Engineering, Vol. 15, no. 4, Dec. 2018, pp. 5815-2, doi:10.15282/ijame.15.4.2018.8.0445.