Authors
Ekaterina Zmeškal
ekaterina.blinova@fpedas.uniza.sk
Faculty of Operation and Economics of Transport and Communications, University of Žilina, Žilina;
Jozef Majerčák
jozef.majercak@fpedas.uniza.sk
Faculty of Operation and Economics of Transport and Communications, University of Žilina
Adrián Šperka
Faculty of Operation and Economics of Transport and Communications, University of Žilina