Roland T. Mittermeir Maciej M. Syslo Informatics Education - Supporting Computational Thinking, Third International Conference on Informatics in Secondary Schools - Evolution and Perspectives, ISSEP 2008, Torun, Poland, July 1-4, 2008, Proceedings 5090 2008 978-3-540-69923-1 ISSEP Lecture Notes in Computer Science Springer db/conf/issep/issep2008.html