Autori:
1. Saša Pavlović, Univerzitet u Nišu, Mašinski fakultet, Serbia
2. Velimir Stefanovic, Univerzitet u Nišu, Mašinski fakultet, Serbia
3. Bellos Evangelos, National Technical University of Athens, Zografou, Heroon Polytechniou , Greece
4. Christos Tzivanidis, National Technical University of Athens, Zografou, Heroon Polytechniou , Greece

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