type: 7author: Tsagkaris, Iraklis_or_Papathanakos, Georgios_or_Beligiannis, Apostolos_or_Bratsos, AthanasiossubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_VI. HUMANITIES AND ARTS__en