1. Alves V, Neves J, Nelas L, Marreiros F: Web-based medical teaching using a multi-agent system. Proceedings of AI2005, the Twenty-Fifth SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence, Applications and Innovations in Intelligent Systems XIII, Cambridge, UK, 25:14, 2005
2. Shaw E, Johnson WL, Ganeshan R: Pedagogical agents on the Web. Proceedings of the Third Annual Conference on Autonomous Agents, Seattle, WA, 1999, pp 283–290
3. Johnson WL, Shaw E, Marshall A, Labore C: Evolution of the user interaction: the case of Agent Adele. Proceedings of the 8th International Conference on Intelligent User Interfaces, Miami, Florida, 2003, pp 93–100
4. Shyu F-M, Liang Y-F, Hsu W-TA, Luh J-J, Chen H-S: A problem-based e-learning prototype system for clinical medical education. MedInfo., Amsterdam, The Netherlands: IOS, 2004, pp 983–987
5. Vossen G, Westerkamp P: E-learning as a Web service. Proceedings of the 7th International Database Engineering and Applications Symposium, Asunción, Paraguay, pp 242–249, 2003