@inproceedings{Horrocks01h,
  title = "Metamodeling Architecture of Web Ontology Languages",
  author = "J. Pan and I. Horrocks",
  year = "2001",
  booktitle = "Proc.\ of the 2001 Int.\ Semantic Web Working Symposium (SWWS~2001)",
  pages = "131--149",
  url = "download/2001/rdfsfa.pdf",
}