Autori:
1. Mladen Tomić, The School of Higher Technical Professional Education, Niš, Serbia
2. Predrag Živković, Univerzitet u Nišu, Mašinski fakultet, Serbia
3. Mića Vukić , Univerzitet u Nišu, Mašinski fakultet, Serbia
4. Mirko Dobranjac, University of Banja Luka, Faculty of mechanical engineering, Republic of Srpska, Bosnia and Herzegovina
5. Gradimir Ilić, Univerzitet u Nišu, Mašinski fakultet, Serbia

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