subjectTerm: III. ENGINEERING AND TECHNOLOGY_or_VI. HUMANITIES AND ARTS_or_I. MATHEMATICS AND COMPUTER SCIENCEauthor: Bratsos, Athanasios_or_Aggelopoulos, Eleftherios_or_Michalopoulos, Charilaos_or_Georgopoulos, Antonios_or_Μιχαλόπουλος, Χαρίλαος__el