@InProceedings {cddm.webh01,
    author = {S. Castano and V. {De Antonellis} and S. {De Capitani di Vimercati} and M. Melchiori},
    booktitle = {Proc. of the 1st International Workshop on Electronic Business Hubs: XML, Metadata, Ontologies, and Business Knowledge on the Web (WEBH2001)},
    title = {Designing a Three-Layer Ontology in a Web-based Interconnection Scenario},
    address = {Munich, Germany},
    month = {September},
    year = {2001}
}