M. Haridas, und D. Caragea. On the Move to Meaningful Internet Systems: OTM 2009, Volume 5871 von Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2009)
D. Laniado, D. Eynard, und M. Colombetti. Semantic Web Application and Perspectives - Fourth Italian Semantic Web Workshop, Seite 192--201. (Dezember 2007)
M. Ruiz-Casado, E. Alfonseca, und P. Castells. Natural Language Processing and Information Systems, Volume 3513 von Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2005)