collection: 2subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCESauthor: Souliou, Theodora_or_Alissandrakis, Constantine_or_Chasapis, Dimitrios_or_Pagourtzis, Aristeidis_or_��������������������, ��������������������__ellang: el