@inproceedings{Grosz77-ijcai,
  author	= {Grosz, Barbara J.},
  year		= {1977},
  title		= {The Representation and Use of Focus in a System for Understanding Dialogs},
  booktitle	= {Proceedings of 5th. International Joint Conference on Articial Intelligence (IJCAI'77)},
  pages		= {67--76},
  publisher	= {International Joint Conferences on Artificial Intelligence},
  address	= {Pittsburgh, Pennsylvania}
}