Author(s):
1. Suzana Apostolov, Univerzitet u Novom Sadu, Prirodno-matematički fakultet, Serbia
2. Dragana Mekic, University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental, Serbia
3. Gorana Mrđan, Prirodno-matematički fakultet u Novom Sadu, Serbia
4. Borko Matijević, Serbia
5. Đenđi Vaštag, Serbia

Abstract