@inproceedings{STOC-2012-LeonardiR,
	author        = "Stefano Leonardi and Tim Roughgarden",
	booktitle     = "{Proceedings of the 44th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/2213977.2214018",
	isbn          = "978-1-4503-1245-5",
	pages         = "427--434",
	publisher     = "{ACM}",
	title         = "{Prior-free auctions with ordered bidders}",
	year          = 2012,
}