Tkachenko, V., S. Sapronova, I. Kulbovskiy, and O. Fomin. “Research into Resistance to the Motion of Railroad Undercarriages Related to Directing the Wheelsets by a Rail Track”. Eastern-European Journal of Enterprise Technologies, vol. 5, no. 7 (89), Oct. 2017, pp. 65-72, doi:10.15587/1729-4061.2017.109791.