@article{GHLS08a,
  title = "Conjunctive Query Answering for the Description Logic $\mathcal{SHIQ}$",
  author = "Birte Glimm and Ian Horrocks and Carsten Lutz and Uli Sattler",
  year = "2008",
  journal = "J.\ of Artificial Intelligence Research",
  pages = "157--204",
  url = "download/2008/GHLS08a.pdf",
  volume = "31",
}