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4393277 | Besen et al. | Jul 1983 | |
4710955 | Kauffman | Dec 1987 | |
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4876592 | Von Kohorn | Oct 1989 | |
4905094 | Pocock et al. | Feb 1990 | |
4926255 | Von Kohorn | May 1990 | |
4947028 | Gorog | Aug 1990 | |
5001745 | Pollock | Mar 1991 | |
5151782 | Ferraro | Sep 1992 | |
5182705 | Barr et al. | Jan 1993 | |
5233654 | Harvey et al. | Aug 1993 | |
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Entry |
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"Music Marketers Target Specific Consumers With Ever More-Refined Telephone Sampling Strategies", Entertainment Marketing Letter, vol. 6, No. 3, Mar., 1993, pp. 1, 2 and 8. |
Young, Jeffrey "Your Playing My Song," Forbes, Jul. 5, 1993, pp. 114-115. |