lang: elauthor: Gitzenis, Savvas_or_Toumpis, Stavros_or_Triantafyllou, Vasileios_or_Pseiridou, Anastasia_or_Chytiri, Alexandra Paraskevi_or_Chytiris, Leonidas_or_Paraskevas, MichailsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_III. ENGINEERING AND TECHNOLOGYtype: 7