1. Faculty of Electronic Engineering, University of Nis, Nis, Serbia;
2. Institute of Technical Sciences, Serbian Academy of Sciences and Arts, University of Belgrade, Belgrade, Serbia;
3. Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia;
4. Faculty of Teachers Education, University of K. Mitrovica, Leposavic, Serbia;
5. University of Belgrade Vinca Institute of Nuclear Sciences, Belgrade, Serbia;
6. Department of Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia;
7. North Carolina Central University (NCCU), Durham, NC, USA