Authors
Andrea Andrejević Panić
andrea.andrejevic@educons.edu.rs
Educons University, Faculty of Business Economics, Sremska Kamenica, Serbia
Zagorka Lozanov-Crvenković
zagorka.lozanovcrvenkovic@dmi.uns.ac.rs
University of Novi Sad, Faculty of Sciences, Department of Mathematics and Informatics, Novi Sad, Serbia