@inproceedings{STOC-2004-KleinbergS,
	author        = "Jon M. Kleinberg and Mark Sandler",
	booktitle     = "{Proceedings of the 36th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/1007352.1007439",
	isbn          = "1-58113-852-0",
	pages         = "569--578",
	publisher     = "{ACM}",
	title         = "{Using mixture models for collaborative filtering}",
	year          = 2004,
}