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"Berufsbilder im Berufsverband der deutschen Usability Professionals."
Knut Polkehn et al. (2007)
- Knut Polkehn, Jens Hüttner, Wolfgang Dzida, Thomas Geis:
Berufsbilder im Berufsverband der deutschen Usability Professionals. UP 2007: 199-201
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