1. Aristotle University of Thessaloniki,Laboratory of Nonlinear Systems,Circuits & Complexity, Physics Department,Thessaloniki,Greece
2. National and Kapodistrian University of Athens,Section of Electronic Physics and Systems,Department of Physcics,Athens,Greece,15784
3. Aristotle University of Thessaloniki,Physics Department,Thessaloniki,Greece
4. Hellenic Army Academy,Department of Mathematics and Engineering Science,Vari,Greece,16673