type: 109_or_110subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCESauthor: Androulidakis, Ioannis_or_Karampas, Theofanis_or_Mavromatidis, Ilias_or_Dimitriadis, Stavros_or_Fylaktakidou, Konstantinalang: el