subjectTerm: III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Alissandrakis, Constantine_or_Spyropoulos, Vasileios_or_Achilias, Dimitris_or_Patsourakos, Spyros_or_Chasapis, Dimitrios