subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTSauthor: Kontogeorgis, Aristeidis_or_Pagourtzis, Aristeidis_or_Tsitsiou-Chelidoni, Chrysanthi_or_Antoniadis, Ioannis_or_Αντωνιάδης, Ιωάννης__el