subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCEScollection: 2author: Alissandrakis, Constantine_or_Zachos, Efstathios_or_Cheliotis, Dimitrios_or_Souliou, Theodora_or_Pagourtzis, Aristeidis_or_Pagourtzis, Aristeidis__enlang: el