Measuring national technological performance with patent claims data

Xuesong Tong and J. Davidson Frame

Research Policy, 1994, vol. 23, issue 2, pages 133-141

Date: 1994
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Research Policy is edited by M. Bell, B. Martin, W.E. Steinmueller, A. Arora, M. Callon, M. Kenney, S. Kuhlmann, Keun Lee and F. Murray

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