Burmeister, Peter. "ConImp: Ein Programm zur Formalen Begriffsanalyse." Paper presented at the meeting of the Begriffliche Wissensverarbeitung: Methoden und Anwendungen, Heidelberg, 2000.

Biedermann, Klaus. "How triadic diagrams represent conceptual structures." Paper presented at the meeting of the Conceptual structures: Fulfilling Peirce's dream, Berlin--Heidelberg--New York, 1997.

Biedermann, Klaus. "Triadic Galois connections." Paper presented at the meeting of the General algebra and applications in discrete mathematics, Aachen, 1997.

Pollandt, Silke. Fuzzy Begriffe: Formale Begriffsanalyse von unscharfen Daten. Berlin--Heidelberg: Springer--Verlag, 1997.

Stumme, Gerd and Wolff, Karl Erich. "Computing in Conceptual Data systems with relational structures." Paper presented at the meeting of the Proc. Intl. Symposium on Knowledge Retrieval, Use, and Storage for Efficiency, Vancouver, Canada, 1997.

Biedermann, Klaus and Wille, Rudolf. "Valuations and hierarchizations." Paper presented at the meeting of the From data to knowledge, Heidelberg, 1996.

Burmeister, Peter and Wojdylo, B.. "The meaning of basic category theoretical notions in some categories of partial algebras III." Demonstratio Mathematica 29 , no. 4 (1996): 825-848.

Stumme, Gerd. "Local Scaling in Conceptual Data Systems." Paper presented at the meeting of the Conceptual Structures: Knowledge Representation as Interlingua Proc. ICCS'96, Heidelberg, 1996.

Wille, Rudolf. "Conceptual structures of multicontexts." Paper presented at the meeting of the Conceptual structures: representation as interlingua, Berlin--Heidelberg--New York, 1996.

Wille, Rudolf. "Restructuring mathematical logic: an approach based on Peirce's pragmatism." Paper presented at the meeting of the Logic and algebra, New~York, 1996.

Lehmann, Fritz and Wille, Rudolf. "A triadic approach to formal concept analysis." Paper presented at the meeting of the Conceptual structures: applications, implementation and theory, Berlin--Heidelberg--New~York, 1995.

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.

Wille, Rudolf. "The basic theorem of triadic concept analysis." Order 12 (1995): 149-158.

Wille, Rudolf and Wille, Uta. "Uniqueness of coordinatizations of ordinal structures." Paper presented at the meeting of the Contributions to general algebra, Wien, 1995.

Burmeister, Peter and Wojdylo, B.. " Properties of homomorphisms and quomorphisms
between partial algebras ." Paper presented at the meeting of the Contributions to general algebra , Wien , 1987 .

Ganter, Bernhard. " Algorithmen zur Formalen Begriffsanalyse ." In Beiträge zur Begriffsanalyse , edited by B. Ganter, R. Wille and K. E. Wolff , 241-254 . Mannheim : B.I.--Wissenschaftsverlag , 1987 .

Wille, Rudolf. "Bedeutungen von Begriffsverbänden." In Beiträge zur Begriffsanalyse , edited by Bernhard Ganter, Rudolf Wille and Karl Erich Wolff , 161-211 . Mannheim : B.I.--Wissenschaftsverlag , 1987 .

Ganter, Bernhard, Stahl, Jürgen and Wille, Rudolf. " Conceptual measurement and many--valued
contexts ." Paper presented at the meeting of the Classification as a tool of research , Amsterdam , 1986 .

Kipke, U. and Wille, Rudolf. " Begriffsverbände als Ablaufschemata zur
Gegenstandsbestimmung ." Paper presented at the meeting of the Die Klassifikation und ihr Umfeld , Frankfurt , 1986 .