ASIS SIG/CR Classification Research Workshop 2001: Washington, DC, USA
- Efthimis N. Efthimiadis (Ed.): Advances of Classification Research, Volume 12, includes all of the papers presented at the workshop, which was held in Washington, DC, USA on November 4, 2001. Information Today 2001 ISBN 1-57387-198-2
- Dagobert Soergel: The Many Uses of Classification: Enriched Thesauri, Ontologies, and Taxonomies as Knowledge Sources.
- Uta Priss: Multilevel Approaches to Concepts and Formal Ontologies.
- Joseph T. Tennis: Layers of Meaning: Disentangling Subject Access Interoperability.