Author Details

Filip, Petru, 1. Dimitrie Cantemir Christian University, Romania, 040042 Bucharest, Splaiul Unirii, 176 2. Agora University of Oradea, Romania, 410526 Oradea, Piata Tineretului, 8 3. University of Oradea Romania, 410610 Oradea, University Street, 1, Romania