subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_VI. HUMANITIES AND ARTS__encollection: 2author: Gitzenis, Savvas_or_Pagourtzis, Aristeidis_or_Toumpis, Stavros_or_Spyropoulos, Vasileios