Hirschfeld, G., Bien, H., De Vries, M., Lüttmann, H., & Schwall, J. (2010). Open-source software to conduct online rating studies. Behavior Research Methods, 42(2), 542-546.

Creating an Ontology for a Multilingual E-Commerce Dictionary (English, December 2007)

Repräsentation geradliniger Graphen (German, February 2005)

3D-Interaktion (German, October 2004)

Textrezeption im Internetzeitalter (German, March 2004)

The Wiki Phenomenon (English, August 2003)