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Citations, Family Size, Opposition and the Value of Patent Rights
, 2003D. Harhoff, F. Scherer, Katrin Vopel
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Patent Quality and Research Productivity: Measuring Innovation with Multiple Indicators
, 2004J. Lanjouw, Mark A. Schankerman
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Technological Relatedness and Knowledge Space: Entry and Exit of US Cities from Patent Classes
, 2015D. Rigby
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