@InProceedings{thresholds-in-qin,
  author =	 {Esteban Arcaute and Adam Kirsch and Ravi Kumar and
                  David Liben-Nowell and Sergei Vassilvitskii},
  title =	 {On Threshold Behavior in Query Incentive Networks},
  booktitle =	 {Proceedings of the 8th ACM Conference on Electronic
                  Commerce (EC'07)},
  year =	 2007,
  pages =        {66--74},
  month =	 jun,
}