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3. Del Franco, M. and Chiger, S. (2002), “Multiple views of multi‐channel promos”, Catalog Age, Vol. 1, December, pp. 16 ff.
4. Garbato‐Stankevitch, D. (2002), “Sears adds new tools to multi‐channel strategy”, Retail Merchandiser, June.
5. Hood, R. (2002‐2003), “One customer, one relationship”, Multiple Marketing Channels, December‐January, available at: http://wnim.com/issue13/pages/multchanmark.htm