Author(s):
1. Bogdan Marić,
Republic of Srpska, Bosnia and Herzegovina
2. Ranko Bozickovic, Univerzitet u Istočnom Sarajevu Saobraćajni fakultet Dobo,
Republic of Srpska, Bosnia and Herzegovina
3. Milos Sorak, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
4. Zdravko Bozickovic, University of East Sarajevo, Faculty for Mechanical Engineering East Sarajevo,
Federation of Bosnia and Herzegovina
, Bosnia and Herzegovina