author: Fountzoula, Christina_or_Papatsiros, Vasileios_or_Papaioannou, Angelos_or_Spyropoulos, Vasileios_or_Σπυρόπουλος, Βασίλειος__eltype: 1collection: 1subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES