collection: 3type: 109_or_108_or_110subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCEauthor: Peleka, Effrosyni_or_Zoumpoulis, Anastasios_or_Misouridou, Evdokia_or_Stathis, Dimitrios_or_Charmandaris, Evangeloslang: el