type: 999_or_108_or_102_or_112lang: elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGYauthor: Panagopoulos, Georgios_or_Perivolaropoulos, Leandros