type: 7author: Leondaritis, George_or_Spyropoulos, Vasileios_or_Pagourtzis, Aristeidis_or_Kitsiouli, EirinisubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__encollection: 2