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Author(s):
1. Milos Sorak, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
2. Miroslav Dragic, University of Banja Luka, Faculty of Technology,
Republic of Srpska, Bosnia and Herzegovina
3. Zorana Tanasić, Faculty of Mechanical Engineering,
Republic of Srpska, Bosnia and Herzegovina
Paper for reviews