J. Tang, M. Hong, J. Li, und B. Liang. International Semantic Web Conference, Volume 4273 von Lecture Notes in Computer Science, Seite 640-653. Springer, (2006)
Y. Jin, Y. Matsuo, und M. Ishizuka. Proceedings of the European Semantic Web Conference, ESWC2007, Volume 4519 von Lecture Notes in Computer Science, Springer-Verlag, (Juli 2007)
M. Kayed, und K. Shaalan. IEEE Transactions on Knowledge and Data Engineering18 (10):
1411--1428(2006)Member-Chia-Hui Chang and Member-Moheb Ramzy Girgis.
G. Gottlob, C. Koch, R. Baumgartner, M. Herzog, und S. Flesca. Proceedings of the Twenty-third ACM SIGACT-SIGMOD-SIGART Symposium
on Principles of Database Systems, June 14-16, 2004, Paris, France, Seite 1-12. ACM, (2004)