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Author(s):
1. Borislav Simendic, VISOKA TEHNIČKA ŠKOLA STRUKOVNIH STUDIJA U NOVOM SADU, Serbia
2. Verica Milanko, VISOKA TEHNIČKA ŠKOLA STRUKOVNIH STUDIJA U NOVOM SADU, Serbia
3. Nevena Vukic, University of Novi Sad, Faculty of Technology, Serbia, Serbia
4. Vesna Teofilovic, Univerzitet u Novom Sadu, Tehnološki fakultet, Novi Sad, Serbia
Abstract