type: 999_or_112subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY_or_VI. HUMANITIES AND ARTS_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES__enauthor: Giannatsis, Ioannis_or_Kalligeros, Emmanouil_or_Kirtas, Emmanouil