1. LNAI,1998
2. Bechhofer, S., van Harmelen, F., Hendler, J., Horrocks, I., McGuinness, D., Patel-Schneider, P., Stein, L.A.: OWL Web Ontology Language Reference. W3C Recommendation (2004)
3. d’Aquin, M., Brachais, S., Bouthier, C., Lieber, J., Napoli, A.: Knowledge Editing and Maintenance Tools for a Semantic Portal in Oncology. International Journal of Human-Computer Studies (IJHCS) 62 (2005)
4. Lecture Notes in Computer Science;J. Lieber,2000
5. Aamodt, A.: Knowledge-Intensive Case-Based Reasoning and Sustained Learning. In: Aiello, L.C. (ed.) Proc. of the 9th European Conference on Artificial Intelligence (1990)