1. University of Nis, Faculty of Electronic Engineering, Nis, Serbia
2. Institute of Technical Sciences of SASA, Belgrade, Serbia
3. University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia
4. ANURS, Banja Luka, Republic of Srpska, BiH
5. University Ulm, Germany
6. North Carolina Central University, USA
7. Department of Materials Science and Engineering, Saarland University, Saarbrücken, Germany