author: Fylaktakidou, Konstantina_or_Paraskevas, Michail_or_Triantafyllou, Vasileios_or_Katsaros, Panagiotistype: 109_or_7subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES