Current Problems in Extraordinariness Situations with the Impact on the Management of Rail Transport Under the Conditions of Slovak RailwaysJuraj Čamaj, Ján Ponický, Lumír Pečený, Pavol Meško and Karel ZemanMATEC Web Conf., 235 (2018) 00024DOI: https://doi.org/10.1051/matecconf/201823500024