- Conceptual Structures: Standards and Practices. Proc. ICCS '99, volume 1640 of LNAI, page 423-441. Heidelberg, Springer, (1999)
- Datenbanksysteme in Büro, Technik und Wissenschaft. Proc. BTW'99, page 328-342. Heidelberg, (1999)
- Knowledge Acquisition, Modeling, and Management. Proc. 11th European, volume 1621 of LNAI, page 275-290. Heidelberg, Springer, (1999)
- Advances in Database Technologies. Proc. Intl. Workshop on Data Warehousing and, volume 1552 of LNCS, page 117-128. Heidelberg, Springer, (1999)
- Proc. Workshop on Knowledge Management, Organizational Memory and Reuse, 5th German Conf. on, Würzburg, (March 1999)
- Proc. 6th Intl. Workshop Knowledge Representation Meets Databases KRDB'99, CEUR Workshop Proc. 21, (1999)Also in: P. Lambrix et al Eds.: Proc. Intl. Workshop on Description Logics DL'99. CEUR Workshop Proc. 22, 1999 http://ceur-ws.org/Vol-21...Also in: P. Lambrix et al Eds.: Proc. Intl. Workshop on Description Logics DL'99. CEUR Workshop Proc. 22, 1999 http://ceur-ws.org/Vol-21.
- FB4-Preprint 2043, TU Darmstadt, (1999)
- Proc.Workshop on Knowledge Acquisition, Modeling and Management KAW'99, 2, page 78-95. Banff, (October 1999)


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