1. University of Pitesti,Electronics, Computer and Electrical Engineering Department,Pitesti,Romania
2. University Politehnica of Bucharest,Measurements, Electrical Apparatus and Static Converters Department,Bucharest,Romania
3. University Politehnica of Bucharest,Electrical Engineering Faculty,Bucharest,Romania
4. Bucharest Transelectrica S.A,Programming and Planning Department for the Teritorial Dispatch Center,Bucharest,Romania