@incollection{Casati-etal98-fois,
  author	= {Casati, R. and Smith, Barry and Varzi, A. C.},
  editor	= {Guarino, N.},
  year		= {1998},
  title		= {Ontological tools for geographic representation},
  booktitle	= {Formal Ontology in Information Systems},
  pages		= {77--85},
  publisher	= {IOS Press},
  address	= {Amsterdam}
}