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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. Đuro Koruga, Mašinski fakultet Univerziteta u Beogradu, Serbia
2. Branislava Jeftić, Univeristy of Belgrade, Faculty of Mechanical Engineering, 3. Jovana Šakota-Rosić, Mašinski fakultet Univerziteta u Beogradu, Serbia
4. Marija Tomić, Albania