subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY_or_VI. HUMANITIES AND ARTS__enauthor: Grontas, Panagiotis_or_Bratsos, Athanasios_or_Kranakis, Evangelos_or_Markou, Evripidis_or_Zachos, Efstathios_or_Pagourtzis, Aristeidis