subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_VI. HUMANITIES AND ARTS__encollection: 2author: Papaioannou, Angelos_or_Spyropoulos, Vasileios_or_Andrikopoulos, Nikolaos_or_Varvoglis%2C Charalamposlang: el