subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Kroupis, Christos_or_Tsotsou, Georgia Eleni_or_Karkalousos, Petros_or_Spyropoulos, Vasileios_or_Kitsiouli, Eirini_or_Zachos, Efstathios