type: 7_or_104_or_112subjectTerm: VI. HUMANITIES AND ARTS_or_III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCESauthor: Michalopoulos, Charilaos_or_Krestenitis, Ioannis_or_Michalopoulos, Andreas_or_Andrikopoulos, Nikolaos