@InProceedings{snow-EtAl:2008:EMNLP,
  author    = {Snow, Rion  and  O'Connor, Brendan  and  Jurafsky, Daniel  and  Ng, Andrew},
  title     = {Cheap and Fast -- But is it Good? Evaluating Non-Expert Annotations for Natural Language Tasks},
  booktitle = {Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing},
  month     = {October},
  year      = {2008},
  address   = {Honolulu, Hawaii},
  publisher = {Association for Computational Linguistics},
  pages     = {254--263},
  url       = {http://www.aclweb.org/anthology/D08-1027}
}