- World Wide Web 14(5-6):671-707 (October 2011)
- Information Systems 33(4-5):385-406 (2008)
- Wiley, Indianapolis, IN, (2003)
- Milin, Lohmar, 2. edition, (2009)
- W3C Working Draft, (Jul 29, 2010)http://www.w3.org/TR/emotionml/ .
- Software \& Support, Frankfurt am Main, (2003)
- Communications of the ACM 51(7):52-58 (2008)
- O'Reilly, Beijing, (2002)
- Galileo Press, Bonn, (2004)
- O'Reilly, Beijing, 1. edition, (2002)
- W3C Recommendation, (Oct 14, 2008)http://www.w3.org/TR/rdfa-syntax/ .
- Sagehill, Santa Cruz, CA, 4. edition, (2007)
- O'Reilly, Beijing, (2003)
- Cambridge University Press, Cambridge, UK, (2008)
- W3C Working Draft, (Aug 31, 2010)http://www.w3.org/TR/2010/WD-voicexml30-20100831/ .
- O'Reilly, Sebastopol, CA, 3. edition, (2006)
- O'Reilly, Beijing, (2002)
- Prentice Hall, Upper Saddle River, NJ, (1998)
- Oldenbourg, München, 7. edition, (2009)
- Hanser, München, 2. edition, (2005)


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