subjectTermFull: I. MATHEMATICS AND COMPUTER SCIENCE::COMPUTER SCIENCE::INFORMATION ASSURANCE AND SECURITY::ENGINEERINGsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGYauthor: Zachos, Efstathios_or_Vakaloudis, Alexandros_or_Politis, Anastasios_or_Mavridis, Ioannis