@article{<a href="http://dblp.uni-trier.de/db/about/bibtex.html">DBLP</a>:journals/pvldb/CaliGP10,
  title = "Advanced Processing for Ontological Queries",
  author = "Andrea Cal\`{\i} and Georg Gottlob and Andreas Pieris",
  year = "2010",
  journal = "PVLDB",
  number = "1",
  pages = "554-565",
  volume = "3",
}