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Severity: Notice
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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. Radmila Lišanin, Institut za nuklearne nauke ”Vinča”, 11000 Beograd (Srbija),, Serbia
2. Mitar Lutovac, FM Herceg Novi , Montenegro
3. Jelena Medić, Akademija strukovnih studija Šumadija (ASSŠ) – Odsek Trstenik, 37240 Trstenik (Srbija), Serbia
4. Danka Nišavić, Visoka škola ”Akademija za poslovnu ekonomiju”, 32000 Čačak (Srbija),, Serbia
Applied paper from author