@inproceedings{SIGIR-2006-LiLL,
	author        = "Baoli Li and Wenjie Li and Qin Lu",
	booktitle     = "{Proceedings of the 29th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1148170.1148308",
	isbn          = "1-59593-369-7",
	pages         = "667--668",
	publisher     = "{ACM}",
	title         = "{Enhancing topic tracking with temporal information}",
	year          = 2006,
}