Research of safety indicators of diesel train movement with two-stage spring suspensionAndriy Kuzyshyn, Andriy Batig, Sergei Kostritsa, Julia Sobolevska, Vitalii Kovalchuk, Stepan Dovhanyuk and Oleg VoznyakMATEC Web Conf., 234 (2018) 05003DOI: https://doi.org/10.1051/matecconf/201823405003