Ganter, Bernhard and Stumme, Gerd. "Creation and Merging of Ontology Top-Levels." Paper presented at the meeting of the Conceptual Structures for Knowledge Creation and Communication., Heidelberg, 2003.

Tane, Julien, Schmitz, Christoph, Stumme, Gerd, Staab, Steffen and Studer, R.. "The Courseware Watchdog: an Ontology-based tool for finding and organizing
learning material." Paper presented at the meeting of the Mobiles Lernen und Forschen - Beiträge der Fachtagung an der Universität, 2003.

Fernandez-Lopez, Mariano, Gomez-Perez, Asun, Euzenat, Jerome, Gangemi, Aldo, Kalfoglou, Y., Pisanelli, D., Schorlemmer, M., Steve, G., Stojanovic, Ljilajana, Stumme, Gerd and Sure, York A survey on methodologies for developing, maintaining, integration, evaluation and
reengineering ontologies. , Universidad Politecnia de Madrid (2002). .

Stumme, G. and Maedche, A.. "FCA-Merge: Bottom-Up Merging of Ontologies.." Paper presented at the meeting of the Proc. 17th Intl. Conf. on Artificial Intelligence (IJCAI '01), Seattle, WA, USA, 2001.

Stumme, G., Studer, R. and Sure, Y.. "Towards an Order-Theoretical Foundation for Maintaining and Merging Ontologies." Paper presented at the meeting of the Verbundtagung Wirtschaftsinformatik 2000, Aachen, 2000.