1. ITMB, Department of Informatics & Telecommunications, National and Kapodistrian University of Athens, Athens 15772, Greece
2. Biomedical Research Foundation, Academy of Athens, 4 Soranou Ephessiou, Athens 11527, Greece
3. Fachbereich Mathematik und Informatik, Freie Universität Berlin, Arnimallee 6, Berlin 14195, Germany
4. Department of Chemistry, Laboratory of Physical Chemistry, National & Kapodistrian University of Athens, Athens 15772, Greece
5. Athena Research Center, Marousi 15125, Greece