author: Kroupis, Christos_or_Alissandrakis, Constantine_or_Kiziroglou, Michail_or_Spyropoulos, Vasileios_or_Pseiridou, Anastasia__ensubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY