Cimiano, Philipp and Hotho, Andreas and Stumme, Gerd and Tane, Julien. Conceptual Knowledge Processing with Formal Concept
Analysis and Ontologies. Concept Lattices. editor(s) Eklund, Peter. Lecture Notes in Computer Science, (2961) 189--207, Springer, Berlin/Heidelberg, Year 2004.

Cimiano, Philipp and Hotho, Andreas and Stumme, Gerd and Tane, Julien. Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies. Concept Lattices. editor(s) Eklund, Peter. LNAI, (2961) 189-207, Springer, Heidelberg, Year 2004.

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

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