@article{FiHH04a,
  title = "{OWL-QL}---a language for deductive query answering on the {S}emantic {W}eb",
  author = "Richard Fikes and Patrick Hayes and Ian Horrocks",
  year = "2004",
  issn = "1570-8268",
  journal = "J.\ of Web Semantics",
  number = "1",
  pages = "19--29",
  url = "download/2004/FiHH04a.pdf",
  volume = "2",
}