R. Arndt, R. Troncy, S. Staab, L. Hardman, and M. Vacura. The Semantic Web, 6th International Semantic Web Conference, 2nd Asian Semantic Web Conference, ISWC 2007 + ASWC 2007, Busan, Korea, November 11-15, 2007, page 30-43. (2007)
J. Sowa. Proceedings of the Linguistic on Conceptual Structures: Logical Linguistic, and Computational Issues, 1867, page 55 - 81. Springer-Verlag London, UK, (2000)
Y. Prié, A. Mille, and J. Pinon. Modeling and Using Context: Second International and Interdisciplinary
Conference, CONTEXT'99, Trento, Italy, September 1999. Proceedings, 1688 / 1999, page 296. Springer-Verlag GmbH, (1999)
A. Gangemi, and P. Mika. International Conference on Ontologies, Databases and Applications
of SEmantics (ODBASE 2003), Catania, (Italy), (November 2003)
R. Arndt, R. Troncy, S. Staab, and L. Hardman. Technical Report, 4. Department of Computer Science, University of Koblenz, Universitätsstraße 1, 56070 Koblenz, (February 2007)