subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Markou, Evripidis_or_Pagourtzis, Aristeidis_or_Cheliotis, Dimitrios_or_Patsourakos, Spyros_or_Alissandrakis, Constantine