D. Zhou, E. Manavoglu, J. Li, L. Giles, and H. Zha. WWW '06: Proceedings of the 15th international conference on World Wide Web, page 173--182. New York, NY, USA, ACM Press, (2006)
H. Wu, M. Zubair, and K. Maly. HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, page 111--114. New York, NY, USA, ACM Press, (2006)
V. Uren, E. Motta, M. Dzbor, and P. Cimiano. K-CAP '05: Proceedings of the 3rd international conference on Knowledge capture, page 75--82. New York, NY, USA, ACM Press, (2005)