@incollection{HasanFries95-intro,
  author	= {Hasan, Ruqaiya and Fries, Peter H.},
  editor	= {Hasan, Ruqaiaya and Fries, Peter},
  title		= {Reflections on Subject and Theme: an introduction},
  pages		= {xiii--xlv},
  booktitle	= {On Subject and Theme: a discourse functional perspective},
  publisher	= {Benjamins},
  year		= {1995},
  address	= {Amsterdam}
}