type: 4_or_109_or_112author: Chytiris, Leonidas_or_Paraskevas, MichailsubjectTerm: VI. HUMANITIES AND ARTS_or_III. ENGINEERING AND TECHNOLOGY_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_V. LAW AND SOCIAL SCIENCES