type: 7author: Kroupis, Christos_or_Tsotsou, Georgia Eleni_or_Spyropoulos, Vasileios_or_Pagourtzis, Aristeidis_or_Ψειρίδου, Αναστασία__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES