subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Nikolopoulos, Dimitrios_or_Lekka, Maria Eleni E_or_Kottou, Sofia_or_Nintos, Alexandros_or_Giannakopoulos, Panagiotis_or_Galanopoulou, Konstantina