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"Tracing technological change over long periods in Germany in chemicals ..."
Icíar Dominguez Lacasa, Hariolf Grupp, Ulrich Schmoch (2003)
- Icíar Dominguez Lacasa, Hariolf Grupp, Ulrich Schmoch:
Tracing technological change over long periods in Germany in chemicals using patent statistics. Scientometrics 57(2): 175-195 (2003)
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