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"Freier und sicherer elektronischer Handel mit originalen, anonymen ..."
Markus Gerhard, Alexander W. Röhm (1997)
- Markus Gerhard, Alexander W. Röhm:
Freier und sicherer elektronischer Handel mit originalen, anonymen Umweltzertifikaten. Verläßliche IT-Systeme 1997: 65-80
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