1. Faculty of Science, University of Split, 21000 Split, Croatia
2. Faculty of Health Studies, University of Rijeka, 51000 Rijeka, Croatia
3. Faculty of Physics, University of Rijeka, 51000 Rijeka, Croatia
4. Faculty of Science, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina
5. Institute of Physics, 10000 Zagreb, Croatia