@inproceedings{PeMH09b,
  title = "A Comparison of Query Rewriting Techniques for {DL-Lite}",
  author = "H\'{e}ctor P\'{e}rez-Urbina and Boris Motik and Ian Horrocks",
  year = "2009",
  booktitle = "Proc.\ of the 2009 Description Logic Workshop (DL~2009)",
  series = "CEUR (\url{http://ceur-ws.org/})",
  url = "download/2009/PeMH09b.pdf",
  volume = "477",
}