1. Polymer Institute
2. Slovak Academy of Sciences
3. 84541 Bratislava
4. Slovakia
5. Vinča Institute of Nuclear Sciences
6. University of Belgrade
7. 11001 Belgrade
8. Serbia
9. Faculty of Agriculture
10. 11080 Belgrade-Zemun
11. The School of Electrical Engineering
12. 11000 Belgrade
13. Faculty of Physical Chemistry
14. 11158 Belgrade