Stumme, Gerd. "Acquiring Expert Knowledge for the Design of Conceptual Information Systems." Paper presented at the meeting of the Knowledge Acquisition, Modeling, and Management. Proc. 11th European, Heidelberg, 1999.

Stumme, Gerd. "Distributive Concept Exploration - A Knowledge Acquisition Tool in Formal Concept Analysis." Paper presented at the meeting of the KI-98: Advances in Artificial Intelligence. Proc. 22. Jahrestagung, Heidelberg, 1998.

Stumme, Gerd. "Concept Exploration - A Tool for Creating and Exploring Conceptual Hierarchies." Paper presented at the meeting of the Conceptual Structures: Fulfilling Peirce's Dream. Proc. ICCS'97, Berlin, 1997.

Stumme, Gerd. Concept Exploration -- Knowledge Acquisition in Knowledge Systems. . Aachen: Shaker, 1997.

Stumme, Gerd. "Attribute Exploration with Background Implications and Exceptions." Paper presented at the meeting of the Data Analysis and Information Systems. Statistical and Conceptual approaches. Proc. GfKl'95. Studies in Classification, Data Analysis, and Knowledge Organization 7, Heidelberg, 1996.

Stumme, Gerd. "Exploration Tools in Formal Concept Analysis." Paper presented at the meeting of the Ordinal and Symbolic Data Analysis. Proc. OSDA'95. Studies in Classification, Data Analysis, and Knowledge Organization 8, Heidelberg, 1996.

Stumme, Gerd. "Knowledge acquisition by distributive concept exploration." Paper presented at the meeting of the Conceptual structures: applications, implementation and theory, Berlin--Heidelberg--New~York, 1995.