@InProceedings{prasad-EtAl:2006:SentSubj,
  author    = {Prasad, Rashmi  and  Dinesh, Nikhil  and  Lee, Alan  and  Joshi, Aravind  and  Webber, Bonnie},
  title     = {Annotating Attribution in the Penn Discourse TreeBank},
  booktitle = {Proceedings of the Workshop on Sentiment and Subjectivity in Text},
  month     = {July},
  year      = {2006},
  address   = {Sydney, Australia},
  publisher = {Association for Computational Linguistics},
  pages     = {31--38},
  url       = {http://www.aclweb.org/anthology/W/W06/W06-0305}
}