M. Rajman, P. Andrews, Del, and F. Seydoux. Proc. of the 11th International Symposium on Applied Stochastic Models and Data Analysis, page 98--105. (2005)
J. Smith, M. Naphade, and A. Natsev. Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International
Conference on, 2, page II--445-8 vol.2. (2003)
J. Zhang, and T. Suel. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 411--420. New York, NY, USA, ACM Press, (2007)