author: Xaplanteri, Maria_or_Spiliopoulos, Ioakeim_or_Lianos, Theodoros_or_Pagourtzis, Aristeidis_or_��������������������, ��������������������__elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY