subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCEStype: 7author: Kranakis, Evangelos_or_Nagopoulos, Nikolaos_or_Pagourtzis, Aristeidis_or_Pateras, Evangelos_or_Κοντογεώργης, Αριστείδης__el