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 Dobrnjac, Mašinski fakultet Univerziteta u Banjoj Luci,
Republic of Srpska, Bosnia and Herzegovina
5. Dragana Dimitrijević, Faculty of Mechanical Engineerning, Serbia