@InProceedings{Grau-Parsia-Sirin-Kalyanpur-06,
  author    = {Bernardo Cuenca Grau and Bijan Parsia and Evren Sirin and Aditya Kalyanpur},
  title     = {Modularity and Web Ontologies},
  booktitle = {Proceedings of KR2006: the 20th International Conference on Principles
               of Knowledge Representation and Reasoning, Lake District, UK, June 2--5, 2006},
  editor    = {Patrick Doherty and John Mylopoulos and Christopher A. Welty},
  year      = {2006},
  pages     = {198--209},
  publisher = {AAAI Press},
}