A. Hotho, S. Staab, и G. Stumme. Knowledge Discovery in Databases: PKDD 2003, 7th European Conference on Principles and Practice of Knowledge Discovery in Databases, Proceedings, том 2838 из Lecture Notes in Computer Science, стр. 217-228. Springer, (2003)
A. Hotho, S. Staab, и G. Stumme. Proceedings of the Semantic Web Workshop of the 26th Annual International ACM SIGIR Conference on Research and Development in Informaion Retrieval (SIGIR 2003), August 1, 2003, Toronto Canada, (2003)Published Online at http://de.scientificcommons.org/608322..