subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGYauthor: Kroupis, Christos_or_Papaioannou, Angelos_or_Spyropoulos, Vasileios_or_Antoniadis, Ioannis_or_Daikos, Georgios__en