P. Ogilvie, and J. Callan. Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Informaion Retrieval, page 143--150. New York, NY, USA, ACM, (2003)
P. Ogilvie, and J. Callan. Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Informaion Retrieval, page 143--150. New York, NY, USA, ACM, (2003)