1. Alberts, B., Bray, D., Johnson, A., Lewis, J., Raff, M., Roberts, K., and Walter, P. Essential Cell Biology Garland Publishing, London, 1998.
2. Aitken S. Process Planning in Cyc: From Scripts and Scenes to Constraints. Proc. Twentieth Workshop of the UK Planning SIG, PLANSIG 2001, Ed. Levine, J., December 2001, pp. 257–260.
3. Chen-Burger, Y. and Robertson, D. Formal Support for an Informal Business Modeling Method. Proc. SEKE 1998.
4. DAML Web Service Ontology http://www.daml.org/services/
5. IDEF3 Method Report, KBSI Inc. http://www.idef.com/idef3.html