Author(s):
1. Milos Kocic, Faculty of Mechanical Engineering in Niš, Serbia
2. Zivojin Stamenkovic, Faculty of Mechanical Engineering in Niš, Serbia
3. Jelena Petrovic, Faculty of Mechanical Engineering in Niš, Serbia
4. Jasmina Bogdanović-Jovanović, Faculty of Mechanical Engineering in Niš, Serbia
5. Milica Nikodijevic, University of Nis, Faculty of Occupational Safety, Serbia

Paper for reviews