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Author(s):
1. Vojislav V. Mitić, Univeristy of Niš, Faculty of Electronic Engineering, Serbia
2. Dušan Milošević, Univeristy of Niš, Faculty of Electronic Engineering, Serbia
3. Jelena Manojlović, Faculty of Mechanical Engineering in Niš, Serbia
4. Marina Soković, Institute for Biological Research “Sinisa Stankovic“, National Institute of Republic of Serbia, Univ, Serbia
5. Vesna Paunović, Univeristy of Niš, Faculty of Electronic Engineering, Serbia
6. Hans Jirgin Feht, Univerzitet Ulm, Odeljenje za materijale, Germany
7. Branislav Vlahovic, United States