@proceedings{dl99,
  title = "Proceedings of the International Workshop on Description Logics (DL'99)",
  year = "1999",
  booktitle = "Proceedings of the International Workshop on Description Logics (DL'99)",
  editor = "P. Lambrix and A. Borgida and M. Lenzerini and R. M{\"o}ller and P. Patel-Schneider",
  key = "Proceedings of DL'99",
  url = "<a href="http://ceur-ws.org/Vol-22/">http://ceur-ws.org/Vol-22/</a>",
}