collection: 2author: Papaioannou, Angelos_or_Zoi, Georgiou_or_Spyropoulos, Vasileios_or_Lianos, Theodoros_or_Ψειρίδου, Αναστασία__eltype: 7subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_V. LAW AND SOCIAL SCIENCES