@InProceedings{choi-EtAl:2005:HLTEMNLP,
  author    = {Choi, Yejin  and  Cardie, Claire  and  Riloff, Ellen  and  Patwardhan, Siddharth},
  title     = {Identifying Sources of Opinions with Conditional Random Fields and Extraction Patterns},
  booktitle = {Proceedings of Human Language Technology Conference and Conference on Empirical Methods in Natural Language Processing},
  month     = {October},
  year      = {2005},
  address   = {Vancouver, British Columbia, Canada},
  publisher = {Association for Computational Linguistics},
  pages     = {355--362},
  url       = {http://www.aclweb.org/anthology/H/H05/H05-1045}
}