D. Sonntag, P. Wennerberg, P. Buitelaar, and S. Zillner. Cases on Semantic Interoperability for Information Systems Integration: Practices and Applications, chapter 8, IGI Global, Hershey, PA, (2009)
G. Schmidt, and I. Novakovic. Proceedings of the Poster and Demonstration Session at the 7th International Semantic Web Conference (ISWC 2008), Karlsruhe, Germany, (2008)