- Informatik-Spektrum 34(5):462-468 (October 2011)
- Semantic Web 1(1-2):69-74 (2010)
- Science 321(5887):395-399 (July 2008)
- Lawrence Erlbaum Associates, Mahwah, NJ, 2. edition, (2008)
- AI Magazine 31(3):33-58 (2010)
- Studies in Linguistics and Philosophy Springer, Dordrecht, (2007)
- Vieweg + Teubner, Wiesbaden, 19. edition, (2009)
- Springer, Berlin, (2009)
- The Human Computer Interaction Handbook, chapter 53, (2008)
- Handbook of Ambient Intelligence and Smart Environments, (2010)
- Springer, Berlin, 33. edition, (2008)
- NICI Technical Report Nijmegen Institute for Cognition Research and Information Technology, Nijmegen, (1990)
- Little, Brown and Co., Boston, (1991)
- Oxford University Press, New York, (1998)
- Suhrkamp Taschenbuch Wissenschaft Suhrkamp, Frankfurt am Main, (1983)
- Machine Learning for Multimodal Interaction: 4th International Workshop, MLMI 2007, Brno, Czech Republic, (2007)
- CSLI Lecture Notes Center for the Study of Language and Information, Stanford, CA, (1985)
- MIT Press, Cambridge, MA, (1989)
- Extraction et gestion des connaissances EGC'2006, Actes des sixièmes journées Extraction et Gestion des Connaissances, Lille, France, 17-20 janvier 2006, 2 Volumes, volume RNTI-E-6 of Revue des Nouvelles Technologies de l'Information, page 5-10. Cépaduès-Éditions, (2006)
- Journal of Ambient Intelligence and Smart Environments 1(1):5-14 (2009)


user