type: 7subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES__enauthor: Kroupis, Christos_or_Toumpis, Stavros_or_Giannakopoulos, Panagiotis_or_Spyropoulos, Vasileios