@inproceedings{CIKM-2007-LangA,
	author        = "Kevin J. Lang and Reid Andersen",
	booktitle     = "{Proceedings of the 16th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1321440.1321526",
	isbn          = "978-1-59593-803-9",
	pages         = "613--622",
	publisher     = "{ACM}",
	title         = "{Finding dense and isolated submarkets in a sponsored search spending graph}",
	year          = 2007,
}