T. Niebler, M. Becker, D. Zoller, S. Doerfel, и A. Hotho. Proceedings of the 25th ACM International on Conference on Information and Knowledge Management, New York, NY, USA, ACM, (2016)forthcoming.
D. Oberle, B. Berendt, A. Hotho, и J. Gonzalez. Advances in Web Intelligence, First International Atlantic Web Intelligence Conference, AWIC 2003, Madrid, Spain, May 5-6, 2003, Proceedings, том 2663 из Lecture Notes in Artificial Intelligence, стр. 142-154. Springer, (2003)