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- Begriffliche Wissensverarbeitung. Methoden und Anwendungen, page 125-150. Berlin-Heidelberg, Springer-Verlag, (2000)
- Knowledge Engineering and Knowledge Management. Methods, Models, and Tools. Proc. EKAW '00, page 352-365. Springer, Heidelberg, (2000)
- Knowledge Engineering and Knowledge Management. Methods, Models, and Tools., volume 1937 of LNAI, page 352-365. Heidelberg, Springer, (2000)
- Knowledge Engineering and Knowledge Management. Methods, Models, and Tools., volume 1937 of LNAI, page 352-365. Heidelberg, Springer, (2000)
- EKAW, volume 1937 of Lecture Notes in Computer Science, page 352-365. Springer, (2000)


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