@inproceedings{pumh08rewriting,
  title = "{Rewriting Conjunctive Queries over Description Logic Knowledge Bases}",
  author = "H{\'e}ctor P{\'e}rez-Urbina and Boris Motik and Ian Horrocks",
  year = "2008",
  address = "Nantes, France",
  booktitle = "Proc. of the Int.\ Workshop on Semantics in Data and Knowledge Bases (SDKB 2008)",
  month = "March",
  publisher = "Springer",
}