1. Associate Professor, Dr., Department of Economics, Faculty of Operation and Economics of Transport and Communications, University of Zilina
2. Associate Professor, Dr., Department of Economics, Faculty of Operation and Economics of Transport and Communications, University of Zilina
3. Professor, Dr., Department of Economics, Faculty of Operation and Economics of Transport and Communications, University of Zilina
4. Ph.D. student, Department of Economics, Faculty of Operation and Economics of Transport and Communications, University of Zilina