@incollection{BlockerStopp98,
  author	= {Blocher, Anselm and Stopp, Eva},
  editor	= {Olivier, Patrick and Gapp, Klaus-Peter},
  title		= {Time-dependent generation of minimal sets of spatial descriptions},
  pages		= {57--72},
  booktitle	= {Representation and processing of spatial expressions},
  publisher	= {Lawrence Erlbaum Associates},
  year		= {1998},
  address	= {Mahwah, New Jersey}
}