1. University of Ruse “Angel Kanchev”,Department of Automation and Mechatronics,Ruse,Bulgaria
2. University of Ruse “Angel Kanchev”,Department of Electronics,Ruse,Bulgaria
3. University of Ruse “Angel Kanchev”,Department of Computer Systems and Technologies,Ruse,Bulgaria
4. Center for Computing and Information Services, University of Ruse “Angel Kanchev”,Ruse,Bulgaria
5. University of Ruse “Angel Kanchev”,Department of Electrical Power Engineering,Ruse,Bulgaria