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Versicherungen für Senioren : Perspektiven für das Zielgruppen-Marketing
Reitzler, Rainer, (2001)
After sixty : marketing to baby boomers reaching their big transition years
Harris, Leslie H., (2006)
After fifty : how the baby boom will redefine the mature market ; travel & leisure, fast food, apparel/retail, technology, health, financial services
Harris, Leslie H., (2003)