@inproceedings{SIGIR-2009-LiuNVA,
	author        = "Yandong Liu and Nitya Narasimhan and Venu Vasudevan and Eugene Agichtein",
	booktitle     = "{Proceedings of the 32nd International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1571941.1572091",
	isbn          = "978-1-60558-483-6",
	pages         = "712--713",
	publisher     = "{ACM}",
	title         = "{Is this urgent?: exploring time-sensitive information needs in collaborative question answering}",
	year          = 2009,
}