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8Nakamura, L., 2003, A Trillion Dollar a Year in Intangible Investment and the New Economy, published in the book "Intangible Assets:Values,Measures and Risks" ,Oxford University Press,2003 ,compiled by Professors Hand,John Hand,and Baruch Lev, 1-47.
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10Hsieh, P., Minshra, C. S., and Cobeli, D. H.,2003,The Return on R&D Versus Capital Expenditures in Pharmaceutical and Chemical Industries,IEEE Transactions on Engineering Management,Vol.50,No. 2, 141-149.
