@article{CHKS08a,
  title = "Modular Reuse of Ontologies: Theory and Practice",
  author = "Bernardo {Cuenca Grau} and Ian Horrocks and Yevgeny Kazakov and Ulrike Sattler",
  year = "2008",
  journal = "J.\ of Artificial Intelligence Research",
  pages = "273-318",
  url = "download/2008/CHKS08a.pdf",
  volume = "31",
}