collection: 2subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCESauthor: Papaioannou, Angelos_or_Kroupis, Christos_or_Spyropoulos, Vasileios_or_Georgopoulos, Antonios_or_Michalopoulos, Andreas_or_Antoniadis, Ioannis