@incollection{Ellis87,
  author	= {Ellis, Jeffrey D.},
  editor	= {Halliday, M. A. K. and Fawcett, Robin P.},
  year		= {1987},
  title		= {The logical and textual functions},
  booktitle	= {New developments in systemic linguistics: theory and description},
  publisher	= {Pinter},
  address	= {London},
  pages		= {107--130}
}