1. Faculty of Chemistry
2. Adam Mickiewicz University
3. 61-614 Poznań
4. Poland
5. Department of Chemistry
6. Faculty of Science
7. University of Kragujevac
8. 34000 Kragujevac
9. Serbia
10. Institute of Molecular Genetics and Genetic Engineering
11. University of Belgrade
12. 11000 Belgrade
13. Faculty of Medicine
14. University of Niš
15. 18000 Niš