@incollection{Horrocks01i,
  title = "Ontologies and Schema Languages on the Web",
  author = "M. Klein and J. Broekstra and D. Fensel and F. van Harmelen and I. Horrocks",
  year = "2003",
  booktitle = "Spinning the Semantic Web: Bringing the World Wide Web to its full potential",
  editor = "Dieter Fensel and James Hendler and Henry Lieberman and Wolfgang Wahlster",
  isbn = "0-262-06232-1",
  publisher = "MIT Press",
}