subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES__encollection: 2author: Stamatis, Dimosthenis_or_Kefalas, Petros_or_Vasileiadis, Nikolaos_or_Gitzenis, Savvas_or_Cheliotis, Dimitrios