Authors
Pavol Kral
University of Žilina, Faculty of Operation and Economics of Transport and Communications, Department of Economics, Žilina, Slovakia
Katarina Janoskova
katarina.janoskova@fpedas.uniza.sk
University of Žilina, Faculty of Operation and Economics of Transport and Communications, Department of Economics, Žilina, Slovakia
Pavol Durana
University of Žilina, Faculty of Operation and Economics of Transport and Communications, Department of Economics, Žilina, Slovakia