José A. Moinhos Cordeiro Boris Shishkov Alexander Verbraeck Markus Helfert CSEDU 2009 - Proceedings of the First International Conference on Computer Supported Education, Lisboa, Portugal, March 23-26, 2009 - Volume 1 978-989-8111-82-1 INSTICC Press CSEDU (1) 2009 db/conf/csedu/csedu2009-1.html