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Measuring national technological performance with patent claims data
Tong, Xuesong; Frame, J. Davidson - In: Research Policy 23 (1994) 2, pp. 133-141
Persistent link: https://www.econbiz.de/10005371861
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The national self-preoccupation of American scientists: An empirical view
Frame, J. Davidson; Narin, Francis - In: Research Policy 17 (1988) 4, pp. 203-212
Persistent link: https://www.econbiz.de/10005371865
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The United States, Japan and the changing technological balance
Frame, J. Davidson; Narin, Francis - In: Research Policy 19 (1990) 5, pp. 447-455
Persistent link: https://www.econbiz.de/10005462036