subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Galanopoulou, Konstantina_or_Andrikopoulos, Nikolaos_or_Pagourtzis, Aristeidis_or_Zachos, Efstathios_or_Kitsiouli, Eirinilang: el