@inproceedings{Halliday88-bologna,
  author	= {Halliday, Michael A. K.},
  editor	= {Bosinelli, Rosa Maria Bollettieri},
  month		= oct,
  year		= {1988},
  title		= {The history of a sentence: an essay in social semiotics},
  booktitle	= {Language Systems and Cultural Systems: proceedings of the International Symposium on Bologna, Italian Culture and Modern Literature},
  publisher	= {University of Bologna}
}