| Professor Athanasios G. Kanatas |
| Department of Digital Systems |
| School of Information and Communication Technologies |
| University of Piraeus |
| 150 Androutsou St, |
| 18534, Piraeus, Greece |
| Tel: +30 210 414 2759 |
| Fax: +30 210 414 2714 |
| E-mail Address: kanatas(-at-)unipi(-dot-)gr |