1. Aristotle University of Thessaloniki,Laboratory of Nonlinear Systems, Circuits & Complexity (LaNSCom),Department of Physics,Thessaloniki,Greece
2. University of Athens,Section of Electronic Physics and Systems,Department of Physics, National and Kapodistrian,Athens,Greece
3. Benemérita Universidad Autónoma de Puebla,Facultad de Ciencias de la Electronica,Puebla,Mexico