Hartmann, Jens and Bontas, Elena Paslaru and Palma, Raúl and Gómez-Pérez, Asunción. DEMO - Design Environment for Metadata Ontologies.. ESWC. 427-441, Year 2006.

Sure, York and Bloehdorn, Stephan and Haase, Peter and Hartmann, Jens and Oberle, Daniel. The SWRC Ontology - Semantic Web for Research Communities. Proceedings of the 12th Portuguese Conference on Artificial Intelligence - Progress in Artificial Intelligence (EPIA 2005). editor(s) Bento, Carlos and Cardoso, Amilcar and Dias, Gael. LNCS, (3803) 218 - 231, Springer, Covilha, Portugal, Year 2005.

Sure, York and Bloehdorn, Stephan and Haase, Peter and Hartmann, Jens and Oberle, Daniel. The SWRC Ontology - Semantic Web for Research Communities.. In Progress in Artificial Intelligence, 218--231, Year 2005.

Agarwal, Sudhir and Fankhauser, Peter and Gonzalez-Ollala, Jorge and Hartmann, Jens and Hollfelder, Silvia and Jameson, Anthony and Klink, Stefan and Lehti, Patrick and Ley, Michael and Rabbidge, Emma and Schwarzkopf, Eric and Shrestha, Nitesh and Stojanovic, Nenad and Studer, Rudi and Stumme, Gerd and Walter, Bernd. Semantic Methods and Tools for Information Portals. INFORMATIK 2003 -- Innovative Informatikanwendungen (Band 1). editor(s) Dittrich, K. and König, W. and Oberweis, A. and Rannenberg, K. and Wahlster, W.. LNI, (34) 116-131, Gesellschaft für Informatik, Bonn, Year 2003.

Hartmann, Jens and Hotho, Andreas and Stumme, Gerd. Semantic Web Mining for Building Information Portals (Position Paper). Proc. Arbeitskreistreffen Knowledge Discovery, Oldenburg, Sept. 2002. 34-38, Year 2002.