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[1]
Campbell A, 1997, Journal of Interactive Marketing, V11, P44, DOI [DOI 10.1002/(SICI)1522-7138(199722)11, 10.1002/%28SICI%291522-7138%28199722%2911%3A3%3C44%3A%3AAID-DIR7%3E3.0.CO%3B2-X, DOI 10.1002/(SICI)1522-7138(199722)11:33.0.CO
[2]
2-X]