Identifying technological sub-trajectories in patent data: the case of photovoltaics |
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Authors: | Martin Kalthaus |
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Affiliation: | 1. Department of Economics, Friedrich Schiller University Jena, Jena, Germanymartin.kalthaus@uni-jena.de |
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Abstract: | |
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Keywords: | Innovation sub-trajectory patent search photovoltaics |
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