collection: 2author: Cheliotis, Dimitrios_or_Bratsos, Athanasios_or_Kranakis, Evangelos_or_Pagourtzis, Aristeidis_or_Κοντογεώργης, Αριστείδης__elsubjectTerm: III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCElang: el