author: Spyropoulos, Vasileios_or_Anagnostopoulos, Konstantinos_or_Pagourtzis, Aristeidis_or_Κοντογεώργης, Αριστείδης__elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY