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Die 1:1-Zukunft : Strategien für ein individuelles Kundenmarketing
Peppers, Don, (1994)
Enterprise one-to-one : tools for building unbreakable customer relationships in the interactive age
Peppers, Don, (1997)
The one to one fieldbook : the complete toolkit for implementing a 1 to 1 marketing program
Peppers, Don, (1999)