1 | Lublin University of Technology, Faculty of Mechanical Engineering, Department of Transport, Combustion Engines and Ecology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland |
2 | University of Žilina, Faculty of Mechanical Engineering, Department of Transport and Handling Machines, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic |
3 | University of Žilina, Faculty of Mechanical Engineering, Department of Design and Mechanical Elements, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic |