@conference {Chen:08,
	title = {Complexity of Combinatorial Market Makers},
	booktitle = {Proceedings of the Eighth ACM Conference on Electronic Commerce (EC{\textquoteright}08)},
	year = {2008},
	pages = {190{\textendash}199},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/chen-ec08.pdf},
	author = {Yiling Chen and Lance Fortnow and Nicolas Lambert and David M. Pennock and Jennifer Wortman Vaughan}
}
