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Kousha, K.; Thelwall, M.: Patent citation analysis with Google (2017)
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Orduna-Malea, E.; Thelwall, M.; Kousha, K.: Web citations in patents : evidence of technological impact? (2017)
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Karki, M.M.S.: Patent citation analysis : a policy analysis tool (1997)
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Wu, J.-C.J.; Liu, H.-P.: Technological innovation assessment of business-to business electronic marketplaces (2006)
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