type: 7author: Kranakis, Evangelos_or_Cheliotis, Dimitrios_or_Grontas, Panagiotis_or_Krizanc, Danny_or_Pagourtzis, Aristeidis_or_Λιανός, Θεόδωρος__elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCElang: el