Harri Oinas-Kukkonen Per F. V. Hasle Marja Harjumaa Katarina Segerståhl Peter Øhrstrøm Persuasive Technology, Third International Conference, PERSUASIVE 2008, Oulu, Finland, June 4-6, 2008. Proceedings 5033 2008 978-3-540-68500-5 PERSUASIVE Lecture Notes in Computer Science Springer db/conf/persuasive/persuasive2008.html