1 | University of Zilina, Faculty of Mechanical Engineering, Univerzitna 1, 010 26, Zilina, Slovakia. |
2 | University of Zilina, Faculty of Operation and Economics of Transport and Communications, Univerzitna 1, 010 26, Zilina, Slovakia |
3 | Lublin University of Technology, Faculty of Mechanical Engineering, Nadbystrzycka 36, 20-618 Lublin, Poland |