Severity: Notice
Message: Undefined variable: organizer
Filename: controllers/presentation.php
Line Number: 1296
Author(s):
1. Marko Maslać, Visoka tehnička škola strukovnih studija u Kragujevcu; , Serbia
2. Nenad Milutinović, Visoka tehnička škola strukovnih studija u Kragujevcu; , Serbia