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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. Predrag Pravdić, Akademija strukovnih studija, odsek u Kruševcu, Kruševac (Srbija), Serbia
2. Violeta Đorđević, Akademija strukovnih studija Šumadija (ASSŠ) – Odsek Trstenik, Trstenik (Srbija), Serbia
3. Jelena Eric Obucina, Germany
4. Vladan Obućina, Vojska Srbije, Kraljevo (Srbija), Serbia
Applied paper from author