author: Spyropoulos, Vasileios_or_Michalopoulos, Charilaos_or_Georgopoulos, Antonios_or_Μιχαλόπουλος, Χαρίλαος__elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_VI. HUMANITIES AND ARTS