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Discovery the 65t consumer
Gelb, Betsy D. - In: Business horizons 25 (1982) 3, pp. 42-46
Persistent link: https://www.econbiz.de/10003563875
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Exploring the gray market segment
Gelb, Betsy D. - In: MSU business topics 26 (1978) 2, pp. 41-46
Persistent link: https://www.econbiz.de/10002401458
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Gray power : next challenge to business?
Gelb, Betsy D. - In: Business horizons 30 (1977) 2, pp. 38-45
Persistent link: https://www.econbiz.de/10002401469
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Managing with the consumer's help
Gelb, Betsy D.; Gelb, Gabriel M.; Griffin, Ricky W. - In: Business horizons 19 (1976) 2, pp. 69-74
Persistent link: https://www.econbiz.de/10002401487