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What do technology shocks do?
Shea, John, (1999)
Patent analysis of a company's technology strength
Haupt, Reinhard, (2005)
Patent analysis of company's technology strength
Haupt, Reinhard, (2004)
Assessing technological competencies
Narin, Francis, (2000)
Narin, Francis, (2006)
Citation Frequency And The Value Of Patented Inventions
Harhoff, Dietmar, (1999)