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Article / Letter to editor
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2017
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Frascati Manual
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bibliometric indicators
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productivity
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R&D statistics
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national R&D systems
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Aksnes, D.W.
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Sivertsen, G.
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Wendt, K.K.
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Van Leeuwen, T.N.
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Aksnes, D.W.; Sivertsen, G.; Leeuwen, T.N. van; Wendt, K.K.
2017
Measuring the productivity of national R&D systems: challenges in cross-national comparisons of R&D input and publication output indicators
Article / Letter to editor
open access
Aksnes, D.W.; Sivertsen, G.; Van Leeuwen, T.N.; Wendt, K.K.
2017
Measuring the productivity of national R&D systems: challenges in cross-national comparisons of R&D input and publication output indicators
Article / Letter to editor
open access
Aksnes, D.W.; Sivertsen, G.; Van Leeuwen, T.N.; Wendt, K.K.
2017
Measuring the productivity of national R&D systems: challenges in cross-national comparisons of R&D input and publication output indicators
Article / Letter to editor
open access
Aksnes, D.W.; Sivertsen, G.; Van Leeuwen, T.N.; Wendt, K.K.
2017
Measuring the productivity of national R&D systems: challenges in cross-national comparisons of R&D input and publication output indicators
Article / Letter to editor
open access