@inproceedings{CueHorKazSat:07:Framework,
  title = "A Logical Framework for Modularity of Ontologies.",
  author = "Bernardo Cuenca Grau and Ian Horrocks and Yevgeny Kazakov and Ulrike Sattler",
  year = "2007",
  booktitle = "IJCAI",
  pages = "298-303",
  url = "http://www.ijcai.org/papers07/Papers/IJCAI07-046.pdf",
}