author: Cheliotis, Dimitrios_or_Krizanc, Danny_or_Zachos, Efstathios_or_Pagourtzis, Aristeidis_or_Κοντογεώργης, Αριστείδης__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY