lang: eltype: 108_or_112_or_104subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_VI. HUMANITIES AND ARTS_or_III. ENGINEERING AND TECHNOLOGYauthor: Koutitas, Christoforos_or_Kombiadou, Katerina_or_Krestenitis, Ioannis_or_Paraskevas, Michail_or_Triantafyllou, Vasileios_or_Chytiris, Leonidas