@inproceedings{STOC-2002-DrineasKR,
	author        = "Petros Drineas and Iordanis Kerenidis and Prabhakar Raghavan",
	booktitle     = "{Proceedings of the 34th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/509907.509922",
	isbn          = "1-58113-495-9",
	pages         = "82--90",
	publisher     = "{ACM}",
	title         = "{Competitive recommendation systems}",
	year          = 2002,
}