8Lovelock,christopher H. and Robert F.Young,Look to consumers to increase productivity [J]. Harvard business review, 1979(57) : 168-178.
9Prahalad .c.k, & Ramaswamy.V.Co-opting customer competence[J]. Harvard Business Review, 2000(1-2):79-87.
10Sethi,Rajesh,Daniel C.Smith,and C.Whan Park. Cross- Functional product Development Teams,Creativity,and the In- novativeness of New consumer products[J]. Journal of marketing Research 2001 (2) :73-85.