collection: 2subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_VI. ΑΝΘΡΩΠΙΣΤΙΚΕΣ ΕΠΙΣΤΗΜΕΣ ΚΑΙ ΤΕΧΝΕΣ__elauthor: Grontas, Panagiotis_or_Zachos, Efstathios_or_Rothos, Vasileios_or_Bratsos, Athanasios