@inproceedings{MaKH10b,
  title = "Tractable Extensions of the Description Logic $\mathcal{EL}$ with Numerical Datatypes",
  author = "Despoina Magka and Yevgeny Kazakov and Ian Horrocks",
  year = "2010",
  booktitle = "Proc.\ of the 2010 Description Logic Workshop (DL~2010)",
  series = "CEUR (\url{http://ceur-ws.org/})",
  url = "download/2010/MaKH10b.pdf",
  volume = "573",
}