author: Fountzoula, Christina_or_Achilias, Dimitris_or_Spyropoulos, Vasileios_or_Ψειρίδου, Αναστασία__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_V. LAW AND SOCIAL SCIENCES