Severity: Notice
Message: Undefined offset: 0
Filename: controllers/presentation.php
Line Number: 875
Severity: Notice
Message: Trying to get property of non-object
Filename: controllers/presentation.php
Line Number: 875
Author(s):
1. Darko Divnić, Akademija nauka i umjetnosti Republike Srpske,
Republic of Srpska, Bosnia and Herzegovina
2. Dragoljub Mirjanić, Akademija nauka i umjetnosti Republike Srpske,
Republic of Srpska, Bosnia and Herzegovina
3. Esad Jakupović, Academy of Sciences and Arts of the Republic of Srpska, Bana Lazarevića 1, 78000 Banja Luka, Republi,
Republic of Srpska, Bosnia and Herzegovina
4. Zoran Ž. Avramović, University od Belgrade, Serbia
5. Tomislav Pavlović, University of Nis, Faculty of Sciences and Mathematics, , Serbia
6. Ivana Radonjić Mitić, University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, Niš, Serbia