1. Bechhofer, S., van Harmelen, F., Hendler, J., Horrocks, I., McGuinees, D.L., Patel-Schneider, P.F., Stein, L.A.: OWL Web Ontology Language Reference (2004)
2. Brickley, D., Guha, R.V.: RDF Vocabulary Description Language 1.0: RDF Schema. Technical report, W3C (2002)
3. Buitelaar, P., Cimiano, P., Haase, P., Sintek, M.: Towards linguistically grounded ontologies. Technical report, Institute AIFB, Universität Karlsruhe, TH (2008)
4. Buitelaar, P., Declerck, T., Frank, A., Racioppa, S., Kiesel, M., Sintek, M., Engel, R., Romanelli, M., Sonntag, D., Loos, B., Micelli, V., Porzel, R., Cimiano, P.: Linginfo: Design and applications of a model for the integration of linguistic information in ontologies. In: Proceedings of the LREC OntoLex 2006 Workshop (2006)
5. Lecture Notes in Computer Science;P. Buitelaar,2006