Author(s):
1. Zoran Ćurguz, Saobraćajni fakultet Doboj, Republic of Srpska, Bosnia and Herzegovina
2. Dragoljub Mirjanić, Akademija nauka i umjetnosti Republike Srpske, Republic of Srpska, Bosnia and Herzegovina
3. Neđo Đurić, Akademija nauka i umjetnosti Republike Srpske, Republic of Srpska, Bosnia and Herzegovina
4. Zora S. Zunić, University of Belgrade, Vinča Institute of Nuclear Sciences, Serbia, Serbia
5. Zdenka Stojanovska, Faculty of Medical Sciences, Goce Delčev University Stip, Macedonia
6. Predrag Kolarž, Institute of Physics, University of Belgrade, , Serbia