@InProceedings{larsson-zaenen:2000:SIGDIAL,
  author    = {Staffan Larsson   and  Annie Zaenen},
  title     = {Document Transformations and Information States },
  booktitle = {1st SIGdial Workshop on Discourse and Dialogue},
  month     = {October},
  year      = {2000},
  address   = {Hong Kong, China},
  publisher = {Association for Computational Linguistics},
  pages     = {112--120},
  url       = {http://www.aclweb.org/anthology/W00-1013},
  doi       = {10.3115/1117736.1117749}
}