Stability of the Railway Subgrade under Condition of Its Elements Damage and Severe EnvironmentVitalii Kovalchuk, Mykola Sysyn, Olga Nabochenko, Andrii Pentsak, Oleh Voznyak and Stepan KinterMATEC Web Conf., 294 (2019) 03017DOI: https://doi.org/10.1051/matecconf/201929403017