Author(s):
1. Nikola Vučetić, Mašinski fakultet,
Republic of Srpska, Bosnia and Herzegovina
2. Aleksija Đurić, Mašinski fakultet Univerziteta u Istočnom Sarajevu,
Republic of Srpska, Bosnia and Herzegovina
3. Miroslav Milutinović, University of East Sarajevo, Faculty for Mechanical Engineering East Sarajevo,
Republic of Srpska, Bosnia and Herzegovina