collection: 1_or_2subjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_VI. HUMANITIES AND ARTS_or_I. ΜΑΘΗΜΑΤΙΚΑ ΚΑΙ ΠΛΗΡΟΦΟΡΙΚΗ__elauthor: Michalopoulos, Charilaos_or_Georgiadis, Loukas_or_Kontogiannis, Ioannis_or_Michalopoulos, Andreas_or_Toumpis, Stavros_or_Cheliotis, Dimitrios