@conference {Feldman_ec12,
	title = {Revenue Maximizing Envy-free Multi-unit Auctions with Budgets},
	booktitle = {In Proceedings of the 13th ACM Conference on Electronic Commerce (EC-12)},
	year = {2012},
	pages = {532-549},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/feldman_ec12.pdf},
	author = {Michal Feldman and Amos Fiat and Stefano Leonardi and Piotr Sankowski}
}
