1. Educons University
2. Faculty of Sport and Tourism – TIMS
3. 21000 Novi Sad
4. Serbia
5. Department of Physics
6. Madras Christian College
7. East Tambaram 600059
8. India
9. University of East Sarajevo
10. Faculty of Technology
11. 75400 Zvornik
12. Republic of Srpska, Bosnia and Herzegovina
13. University of Novi Sad
14. Faculty of Sciences
15. Department of Chemistry, Biochemistry and Environmental Protection