1. Aleven, V. (1997). Teaching Case-Based Reasoning Through a Model and Examples. Ph.D. Dissertation, University of Pittsburgh, Pittsburgh (PA)
2. Ashley K. D. (1991) Reasoning with Cases and Hypotheticals in HYPO, International Journal of Man-Machines Studies 34:753–796
3. Baader F., Calvanese D., McGuinness D., Nardi D., Patel-Schneider P. F., (eds) (2003) The Description Logic Handbook. University Press, Cambridge
4. Bechhofer, S., van Harmelen, F., Hendler, J., Horrocks, I., McGuinness, D. L., Patel-Schneider, P. F., and Stein, L. A. (eds.) (2004). OWL Web Ontology Language Reference – W3C Recommendation 10 February 2004. W3C ( http://www.w3.org/TR/owl-ref/ )
5. Bertino E., Catania B., Zarri G. P. (2001) Intelligent Database Systems. Addison-Wesley and ACM Press, London