University of Zilina in Zilina, Faculty of Operation and Economics of Transport and Communications, Department of Road and Urban Transport Univerzitná 8251/1, SK-010 26 Žilina, Slovak Republic Phone: +421 415 133 526
Jana Dicová
University of Zilina in Zilina, Faculty of Management Science and Informatics, Department of Management Theories Univerzitná 8251/1, SK-010 26 Žilina, Slovak Republic Phone: +421 415 134 077