subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_V. LAW AND SOCIAL SCIENCESauthor: Spyropoulos, Vasileios_or_Nikolopoulos, Stavros_or_Papaioannou, Angelos_or_Ψειρίδου, Αναστασία__el