@incollection{MartinMatthiessen91-topo,
  author	= {Martin, James R. and Matthiessen, Christian M. I. M.},
  editor	= {Christie, Frances},
  year		= {1991},
  title		= {Systemic typology and topology},
  booktitle	= {Literacy in social processes: papers from the Inaugural Australian Systemic Functional Linguistics Conference, Deakin University, January 1990},
  publisher	= {Centre for Studies of Language in Education, Northern Territory University},
  address	= {Darwin},
  pages		= {345--383}
}