Authors
Juraj Čamaj
Faculty of Operation and Economics of Transport and Communications, University of Žilina, Žilina, Slovakia
Jaroslav Mašek
jaroslav.masek@fpedas.uniza.sk
Faculty of Operation and Economics of Transport and Communications, University of Žilina, Žilina, Slovakia
Martin Kendra
Faculty of Operation and Economics of Transport and Communications, University of Žilina, Žilina, Slovakia