@inproceedings{STOC-2001-HaleviKKN,
	author        = "Shai Halevi and Robert Krauthgamer and Eyal Kushilevitz and Kobbi Nissim",
	booktitle     = "{Proceedings of the 33rd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/380752.380850",
	isbn          = "1-58113-349-9",
	pages         = "550--559",
	publisher     = "{ACM}",
	title         = "{Private approximation of NP-hard functions}",
	year          = 2001,
}