@incollection{HPMW07,
  title = "{OWL: a Description Logic Based Ontology Language for the Semantic Web}",
  author = "Ian Horrocks and Peter F.~Patel-Schneider and Deborah L.~McGuinness and Christopher A.~Welty",
  year = "2007",
  booktitle = "The Description Logic Handbook: Theory, Implementation, and Applications (2nd Edition)",
  chapter = "14",
  editor = "Franz Baader and Diego Calvanese and Deborah McGuinness and Daniele Nardi and Peter F.~Patel-Schneider",
  publisher = "Cambridge University Press",
  url = "download/2003/HPMW07.pdf",
}