subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_VI. HUMANITIES AND ARTS__enauthor: Lekka, Maria Eleni E_or_Patsourakos, Spyros_or_Mousiopoulos, Nikolaos_or_Leondaritis, George_or_Alissandrakis, Constantine_or_Ntziachristos, Leonidas_or_Kitsiouli, Eirini