author: Toumpis, Stavros_or_Charmandaris, Evangelos_or_Androulidakis, Ioannis_or_Fylaktakidou, Konstantina_or_Krestenitis, Ioannis_or_Komineas, StavrossubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCElang: el