1. University of Maribor, Faculty of Mechanical Engineering, Institute of Structures and Design, Smetanova 17, 2000, Maribor – Slovenia
2. University of Maribor, Faculty of Mechanical Engineering, Institute of Engineering Materials and Design, Smetanova 17, 2000, Maribor – Slovenia
3. 3National R&D Institute for Textiles and Leather, Bucharest Lucrețiu Pătrășcanu 16, sector 3, 030508, Bucharest – Romania