Numerical Aspects in the Data Model of Conceptual Information Systems.
In: Y. Kambayashi, D. K. Lee, E.-P. Lim, M. K. Mohania and Y. Masunaga, editors, Advances in Database Technologies. Proc. Intl. Workshop on Data Warehousing and, volume 1552, series LNCS, pages 117-128. Springer, Heidelberg, 1999.
G. Stumme and K. E. Wolff.
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Acquiring Expert Knowledge for the Design of Conceptual Information Systems.
In: D. Fensel and R. Studer, editors, Knowledge Acquisition, Modeling, and Management. Proc. 11th European, volume 1621, series LNAI, pages 275-290. Springer, Heidelberg, 1999.
Gerd Stumme.
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Dual Retrieval in Conceptual Information Systems.
In: A. Buchmann, editor, Datenbanksysteme in Büro, Technik und Wissenschaft. Proc. BTW'99, pages 328-342. Heidelberg, 1999.
Gerd Stumme.
[doi]  [BibTeX]