collection: 2lang: en_or_elauthor: Papatheodoropoulos, Costas_or_Michalopoulos, Andreas_or_Michalopoulos, Charilaos_or_Lianos, Theodoros_or_Andrikopoulos, NikolaossubjectTerm: VI. HUMANITIES AND ARTS_or_V. LAW AND SOCIAL SCIENCES_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES