@incollection{Hasan87-lexis,
  author	= {Hasan, Ruqaiya},
  editor	= {Halliday, Michael A. K. and Fawcett, Robin P.},
  year		= {1987},
  title		= {The grammarian's dream: lexis as most delicate grammar},
  booktitle	= {New Developments in Systemic Linguistics. Volume 1},
  publisher	= {Frances Pinter},
  address	= {London}
}