@inproceedings{HoPa03,
  title = "Three Theses of Representation in the Semantic Web",
  author = "Ian Horrocks and Peter F.\ Patel-Schneider",
  year = "2003",
  booktitle = "Proc.\ of the Twelfth International World Wide Web Conference (WWW 2003)",
  isbn = "1-58113-680-3",
  pages = "39--47",
  publisher = "ACM",
  url = "download/2003/p50-horrocks.pdf",
}