1. Croatian Transmission System OperatorC. Hadrijana 3OsijekCroatia
2. Faculty of Electrical Engineering, Computer Science and Information Technology in OsijekJosip Juraj Strossmayer University in OsijekTrpimirova bbCroatia
3. Faculty of Electrical EngineeringUniversity of TuzlaFranjevačka 2Bosnia and Herzegovina