@inproceedings{streit-krieger:2004:ACLrefres,
  author    = {Streit, Michael  and  Krieger, HansUlrich},
  title     = {Ellipsis Resolution by Controlled Default Unification for Multi-modal and Speech Dialog Systems },
  booktitle = {ACL 2004: Workshop on Reference Resolution and its Applications},
  editor = {Sanda Harabagiu and David Farwell},
  year      = 2004,
  month     = {July},
  address   = {Barcelona, Spain},
  publisher = {Association for Computational Linguistics},
  pages     = {87--94}
}