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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. Jelena Subotić,
Republic of Srpska, Bosnia and Herzegovina
2. Vojislav Dukić, Faculty of Forestry, University of Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
3. Goran Trbić,
Republic of Srpska, Bosnia and Herzegovina
4. Zoran Maunaga, Faculty of Forestry, University of Banja Luka,
Republic of Srpska, Bosnia and Herzegovina