author: Bratsos, Athanasios_or_Papatheodoropoulos, Costas_or_Lianos, Theodoros_or_Gitzenis, Savvas_or_Toumpis, Stavros_or_����������������������, ������������������__elsubjectTerm: VI. HUMANITIES AND ARTS_or_V. LAW AND SOCIAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE