Cimiano, Philipp, Hotho, Andreas, Stumme, Gerd, Tane, Julien, Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies, in: Eklund, Peter (Hrsg.), Concept Lattices, Bd. 2961, Berlin/Heidelberg 2004, S. 189--207.

Cimiano, Philipp, Hotho, Andreas, Stumme, Gerd, Tane, Julien ; Eklund, Peter: Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies. 2961. In: Concept Lattices. Heidelberg : Springer, 2004 (LNAI). - ISBN 3-540-23258-3, S. 189-207

Stumme, Gerd ; Wolff, Karl Erich, Pfeiffer, Heather D., Delugach, Harry S.: Iceberg Query Lattices for Datalog. 3127. In: Conceptual Structures at Work: 12th International Conference on Conceptual Structures (ICCS 2004). Heidelberg : Springer, 2004 (LNCS), S. 109-125

Tane, Julien, Schmitz, Christoph, Stumme, Gerd: Semantic resource management for the web: an e-learning application. In: Proc. 13th International World Wide Web Conference (WWW 2004), 2004, S. 1-10