lang: elcollection: 3_or_2type: 112author: Lianos, Theodoros_or_Gitzenis, Savvas_or_Toumpis, Stavros_or_Pseiridou, Anastasia_or_Chytiri, Alexandra Paraskevi_or_Chytiris, Leonidas_or_Paraskevas, MichailsubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES