@article{budgetoptimaltaskallocationforreliable,
  title = {Budget-Optimal Task Allocation for Reliable Crowdsourcing Systems},
  author = {David R. Karger and Sewoong Oh and Devavrat Shah},
  year = {2011},
  eprint = {1110.3564},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1110.3564v4},
}