1. Fensel, D.: Relating Ontology Languages and Web Standards. In: Modelle und Modellierungssprachen in Inf. und WiInf., St. Goar, Fölbach-Verlag (2000)
2. Gil, Y., Ratnakar, V.: A comparison of (semantic) markup languages. In: Proc. 15th Intl. Florida Artificial Intelligence Research Society Conf., Pensacola Beach, May 14-16, pp. 413–418. AAAI Press, Menlo Park (2002)
3. Klein, M., Fensel, D., van Harmelen, F., Horrocks, I.: The Relation between Ontologies and XML Schemas. Linköping Electr. Art. In: Comp. and Inf. Sci. 6 (2001)
4. Rami, R., Nabila, B.: Translation Procedure to Clarify the Relationship Between Ontology and XML Schema. In: Proc. Intl. Conf. on Internet Computing (IC 2001), Las Vegas, pp. 164–170. CSREA Press (2001)
5. Melnik, S.: Bridging the Gap between RDF and XML, http://www-db.stanford.edu/~melnik/rdf/fusion.html (accessed February 1 2004)