@InProceedings{Yahoo_as_an_Ontology_using_Yahoo_categories_to_describe_documents_,
  author = "Yannis K Labrou and Tim  Finin",
  title = "{Yahoo as an Ontology - using Yahoo categories to describe documents,}",
  month = "November",
  year = "1999",
  booktitle = "Proceedings of the 1999 ACM Conference on Information and Knowledge Management (CIKM'99)",
}