subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_VI. ΑΝΘΡΩΠΙΣΤΙΚΕΣ ΕΠΙΣΤΗΜΕΣ ΚΑΙ ΤΕΧΝΕΣ__elauthor: Pagourtzis, Aristeidis_or_Cheliotis, Dimitrios_or_Bratsos, Athanasios_or_Papadopoulos, Apostolos_or_Manolopoulos, Ioannis_or_Spyropoulos, Vasileioslang: el