6Cooper, R.G. Introducing Successful New Products. European Journal of Marketing[J], 1976(10).
7Emilio Esimsito, Michele Mastroianni. Information Technology and Personal Computers: the Relational Life Cycle. Technovation[J], 2002(22) : 41--50.
8Abernathy. W, Utterback. J. Patterns of Industrial Innovation Technology. Rev[ J]. 1978(50 ) : 41 - 47.
9Chuck Ryan, Walter E. Riggs. Redefining the Product Life Cycle: The Five- Element Product Wave. Business Horizons[J], 1996, September-October.
10Paul Windrum, Chris Birchenhall. Is Product Life Cycle Theory a Special Case? Dominant Designs and the Emergence of Market Niches through Coevlutionary- Learing. Structural Change and Economic Dynamics[J], 1998(9) : 109 - 134.
