Author(s):
1. Slavica Maletić, Univerzitet u Beogradu, Fizički fakultet, Studentski trg 12, Beograd, Serbia
2. Dragana Cerović, University of Belgrade, Faculty of Physics, Serbia
3. Ivan Petronijević, Univerzitet u Beogradu, Fizički fakultet, Studentski trg 12, Beograd, Serbia
4. Milorad Šiljegović, University of Belgrade, Vinča Institute of Nuclear Sciences, Serbia, Serbia
5. Jablan Dojčilović, Univerzitet u Beogradu, Fizički fakultet, Studentski trg 12, Beograd, Serbia

Applied paper from author