@incollection{Ravelli95,
  author	= {Ravelli, Louise J.},
  editor	= {Hasan, Ruqaiaya and Fries, Peter H.},
  title		= {A dynamic perspective: implications for metafunctional interaction and an understanding of Theme},
  pages		= {187--234},
  booktitle	= {On Subject and Theme: a discourse functional perspective},
  publisher	= {Benjamins},
  year		= {1995},
  address	= {Amsterdam}
}