共 8 条
- [1] BOOZALLEN, 1982, NEW PRODUCT WINNERS, P7
- [2] Cooper R., 1990, BUSINESS HORIZON MAY, P44
- [3] Cooper R.G., 1988, J MARK MANAG, V3, P238
- [4] Cooper R.G., 1988, WINNING NEW PRODUCTS, V5th edn
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