subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCEStype: 7author: Mavridis, Ioannis_or_Alissandrakis, Constantine_or_Markou, Evripidis_or_Grontas, Panagiotis_or_Pagourtzis, Aristeidis_or_Παγουρτζής, Αριστείδης__ellang: el