%0 Journal Article %J Computers & Education %D 2002 %T A survey on student dropout rates and dropout causes concerning the students in the Course of Informatics of the Hellenic Open University %A Xenos, Michalis %A Christos J. Pierrakeas %A Pintelas, Panagiotis %B Computers & Education %I Elsevier %V 39 %P 361–377 %G eng