@conference {Waggoner_aaai14,
	title = {Output Agreement Mechanisms and Common Knowledge},
	booktitle = {Proceedings of the 2nd AAAI Conference on Human Computation and Crowdsourcing (HCOMP{\textquoteright}14)},
	year = {2014},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/waggoner_aaai14.pdf},
	author = {Bo Waggoner and Yiling Chen}
}
