author: Vasileiadis, Nikolaos_or_Pagourtzis, Aristeidis_or_Kontogiannis, Ioannis_or_Toumpis, Stavros_or_Stamatis, Dimosthenis_or_Spyropoulos, VasileiossubjectTerm: V. LAW AND SOCIAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES__en