1. Faculty of Electrical Engineering and Information Technology, Department of Electrical Engineering, University of Oradea, Oradea, Romania
2. Department of Research, Development & Innovation, Process Innovation Nucleus S.R.L., Mihailesti, Romania
3. Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, Bucharest, Romania