@conference{MaKHIJCAR2010,
  title = "Tractable Extensions of the Description Logic EL with Numerical Datatypes",
  author = "Despoina Magka and Yevgeny Kazakov and Ian Horrocks",
  year = "2010",
  booktitle = "Int. Joint Conf. on Automated Reasoning (IJCAR 2010)",
  journal = "Int. Joint Conf. on Automated Reasoning (IJCAR 2010)",
  location = "Edinburgh, United Kingdom",
  month = "July",
  pages = "61--75",
  publisher = "LNAI",
  volume = "6173",
}