1. Institute of Physics
2. J. Dlugosz Academy
3. Czestochowa
4. Poland
5. Faculty of Physics
6. College of Mathematics and Physics
7. Frantsevych Institute for Problems of Materials Science
8. National Academy of Sciences of Ukraine
9. 03142 Kyiv
10. Ukraine
11. Department of Inorganic and Organic Chemistry
12. Lviv National University of Veterinary Medicine and Biotechnologies
13. Lviv 79010
14. Faculty of Electrical Engineering
15. Czestochowa University Technology
16. Ivan Franko National University of Lviv
17. Wireless and Photonic Networks Research Centre
18. Faculty of Engineering
19. Universiti Putra Malaysia
20. 43400 Serdang
21. Malaysia