@incollection{Halliday92-system,
  author	= {Halliday, M. A. K.},
  editor	= {Svartvik, Jan},
  year		= {1992},
  title		= {Language as system and language as instance: the corpus as a theoretical construct},
  booktitle	= {Directions in corpus linguistics: proceedings of Nobel Symposium 82, Stockholm, 4-8 August 1991},
  publisher	= {Mouton de Gruyter},
  address	= {Berlin}
}