@incollection{BittnerSmith2003-partitions,
  author	= {Bittner, Thomas and Smith, Barry},
  editor	= {Duckham, Matthew and Goodchild, Michael F. and Worboys, Michael F.},
  URL		= {http://wings.buffalo.edu/philosophy/faculty/smith/articles/partitions.pdf},
  pdf		= {http://wings.buffalo.edu/philosophy/faculty/smith/articles/partitions.pdf},
  title		= {A Theory of Granular Partitions},
  booktitle	= {Foundations of Geographic Information Science},
  publisher	= {Taylor and Francis},
  address	= {London},
  year		= {2003},
  pages		= {117--151}
}