type: 104_or_7author: Laloumis, Dimitrios_or_Kombiadou, Katerina_or_Karampas, Theofanis_or_Krestenitis, Ioannis_or_Paraskevas, Michail_or_Triantafyllou, Vasileios_or_Chytiris, LeonidassubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_V. LAW AND SOCIAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY