@misc{swrl-w3c,
  title = "{SWRL}: A Semantic Web Rule Language Combining OWL and RuleML",
  author = "Ian Horrocks and Patel-Schneider, Peter F. and Harold Boley and Said Tabet and Benjamin Grosof and Mike Dean",
  year = "2004",
  howpublished = "{W3C} {M}ember {S}ubmission",
  institution = "World Wide Web Consortium",
  month = "21 May",
  note = "Available at \url{http://www.w3.org/Submission/SWRL/}",
  url = "<a href="http://www.w3.org/Submission/SWRL/">http://www.w3.org/Submission/SWRL/</a>",
}