1. Fensel, D., Horrocks, I., van Harmelen, F., Decker, S., Erdmann, M., Klein, M. 2000. OIL in a nutshell. In: Knowledge Engineering and Knowledge Management: 12th International Conference EKAW2000, Juan-les-Pins. Lecture Notes in Artificial Intelligence, vol. 1937. Springer-Verlag, Berlin, Heidelberg, pp. 1–16.
2. Gruber, T.R., 1994. Towards principles for the design of ontologies used for knowledge sharing. In: Guarino, N., Poli, R., (Eds.), Formal Ontology in Conceptual Analysis and Knowledge Representation. Kluwer, Boston.
3. Halpin, H., Hayes, P., Thompson, H., 2011. When owl: sameAs isn't the same redux: a preliminary theory of identity and inference on the semantic web. In: Workshop on Discovering Meaning on the Go in Large Heterogeneous Data 2011 (LHD-11), Barcelona, Spain, 16 July 2011, pp. 25–30.
4. The DARPA agent markup language;Hendler;IEEE Intelligent Systems,2000
5. Lakoff, G. (Ed), 1987. Women, Fire, and Dangerous Things: What Categories Reveal About the Mind. University of Chicago Press.