Y. Li, W. Luk, K. Ho, and F. Chung. Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, page 797--798. New York, NY, USA, ACM, (2007)
Y. Li, W. Luk, K. Ho, and F. Chung. Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, page 797--798. New York, NY, USA, ACM, (2007)