@inproceedings{STOC-2005-BriestKV,
	author        = "Patrick Briest and Piotr Krysta and Berthold Vöcking",
	booktitle     = "{Proceedings of the 37th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/1060590.1060597",
	isbn          = "1-58113-960-8",
	pages         = "39--48",
	publisher     = "{ACM}",
	title         = "{Approximation techniques for utilitarian mechanism design}",
	year          = 2005,
}