@inproceedings{CIKM-2011-SchlaeferCNFZF,
	author        = "Nico Schlaefer and Jennifer Chu-Carroll and Eric Nyberg and James Fan and Wlodek Zadrozny and David A. Ferrucci",
	booktitle     = "{Proceedings of the 20th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2063576.2063632",
	isbn          = "978-1-4503-0717-8",
	pages         = "345--354",
	publisher     = "{ACM}",
	title         = "{Statistical source expansion for question answering}",
	year          = 2011,
}