@article{JAIR-ibq-2012,
  title = "Reasoning over Ontologies with Hidden Content: The Import-by-Query Approach",
  author = "Bernardo Cuenca Grau and Boris Motik",
  year = "2012",
  journal = "Journal of Artificial Intelligence Research (JAIR)",
  month = "October",
  pages = "197-255",
  publisher = "AAAI Press",
  volume = "45",
}