@inproceedings{Clippinger,
  author	= {Clippinger, J. H.},
  month		= jun,
  year		= {1975},
  title		= {Speaking with many tongues: Some problems in modelling speakers of actual discourse},
  booktitle	= {Proceedings of Theoretical Issues in Natural Language Processing - I (TINLAP)},
  pages		= {68--73},
  address	= {Cambridge, Mass.}
}