1. New Product Winners and Losers;Hopkins;Conference Board Report, # 773,1980
2. Management of New Products;Booz,1968
3. New Product Pressures;Hopkins;The Conference Board Report,1971
4. The Rate and Causes of New Product Failure: An Intensive Literature Review;Crawford;PDMA Conference in Washington,1979
5. Factors for Success in Industrial Innovation;Rothwell,1972