collection: 3subjectTerm: VI. HUMANITIES AND ARTS_or_I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_III. ENGINEERING AND TECHNOLOGY_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCEStype: 207_or_999_or_6_or_109_or_110author: Krestenitis, Ioannis_or_Koumpis, Alexandros_or_Mavromatidis, Ilias_or_Androulidakis, Ioannis_or_Paraskevas, Michail_or_Makris, Christos