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Author(s):
1. Vladimir Šašo, ALFA Univerzitet Beograd, Serbia
2. Srdjan Jovković, ALFA Univerzitet Beograd, Serbia
3. Borivoje Milošević, Univerzitet UNION - Nikola Tesla Beograd, Srbija, Serbia
4. Nikola Davidović, University of East Sarajevo, Faculty of Electrical Engineering, Republic of Srpska, Bosnia and Herc,
Republic of Srpska, Bosnia and Herzegovina