subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCESauthor: Bertachas, Ioannis_or_Koumpis, Alexandroscollection: 3type: 101_or_7_or_109_or_6_or_112lang: el