datepublished: 2015author: Lionis, Christos_or_Markaki, Adelais_or_Fountzoula, Christina_or_Aspraki, Gavriella_or_Kroupis, Christos_or_Sakellari, Evanthia_or_Velonaki, Venetia Sofia_or_Plageras, Panagiotis_or_Spyropoulos, Vasileios_or_Σπυρόπουλος, Βασίλειος__elsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGY_or_V. LAW AND SOCIAL SCIENCES