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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. Sinisa Vucenovic,
Republic of Srpska, Bosnia and Herzegovina
2. Jovan Šetrajčić, Akademija nauka i umjetnosti Republike Srpske, Serbia
3. Dušan Ilić, Serbia