collection: 2author: Kitsakos, Athanasios_or_Tsagkaris, Iraklis_or_Papathanasiou, Athanasios_or_Karkalousos, Petros_or_Spyropoulos, VasileiossubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_VI. HUMANITIES AND ARTS_or_V. ΔΙΚΑΙΟ ΚΑΙ ΚΟΙΝΩΝΙΚΕΣ ΕΠΙΣΤΗΜΕΣ__el