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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. Stevo Jaćimovski, Kriminalističo-policijska akademija Zemun, Serbia
2. Jovan Šetrajčić, Univerzitet u Novom Sadu, Prirodno-matematički fakultet, Departman za fiziku, Serbia
3. Dejan Raković, Elektrotehnički fakultet, Univerzitet u Beogradu, Bulevar Kralja Aleksandra 73, Serbia