1 | Slovak University of Technology, Faculty of Material Science and Technology, J. Bottu 25, 917 24, Trnava, Slovakia |
2 | University of Žilina, Faculty of Mechanical Engineering, Univerzitna 1, 010 26, Žilina, Slovakia |
3 | Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland |