subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Spyropoulos, Vasileios_or_Leondaritis, George_or_Chasapis, Dimitrios_or_Patsourakos%2C Spyros_or_Nikolaidis%2C Nikolaos_or_Ntziachristos%2C Leonidas_or_Alissandrakis%2C Constantinelang: el