J. Mori, Y. Matsuo, H. Koshiba, K. Aihara, and H. Takeda. User Modeling, Adaptation, and Personalization: 17th International Conference, UMAP 2009, formerly UM and AH, Trento, Italy, volume 5535 of Lecture Notes in Computer Science, Springer, Berlin, (2009)
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)
D. Porta. Informatik 2010: Service Science -- Neue Perspektiven für die Informatik, Beiträge der 40. Jahrestagung der Gesellschaft für Informatik e.V. (GI), Band 1, volume P-175 of GI Edition: Lecture Notes in Informatics (LNI) -- Proceedings, page 497--502. Bonn, Gesellschaft für Informatik, (2010)