@incollection{expositoryconcessive,
  author	= {Thompson, Sandra A.},
  editor	= {Joseph, Brian D. and Zwicky, Arnold M.},
  year		= {1987},
  title		= {'Concessive' as a Discourse Relation in Expository Written English},
  booktitle	= {A Festschrift for Ilse Lehiste},
  series	= {Working Papers in Linguistics},
  volume	= {35},
  pages		= {64--73},
  publisher	= {Department of Linguistics, Ohio State University},
  address	= {Columbus, Ohio}
}