1. Department of Electric Power Engineering, University of Ruse, 8 Studentska Str., 7004 Ruse, Bulgaria
2. Department of Telecommunications, University of Ruse, 8 Studentska Str., 7004 Ruse, Bulgaria
3. Department of Robotics and Engineering Tools of Automation, Satbayev University, 22a Satpaev Str., Almaty 050013, Kazakhstan
4. Department Electronics and Robotics Almaty, University of Power Engineering and Telecommunications, Almaty 050013, Kazakhstan
5. Department of Transport Construction and Production of Building Materials, LB Goncharov Kazakh Automobile and Road Institute, pr. Rayymbeka, 417, Almaty 050061, Kazakhstan