共 10 条
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Spatial knowledge spillovers and university research: Evidence from Austria[J] . Manfred M. Fischer,Attila Varga.The Annals of Regional Science . 2003 (2)
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Knowledge Spillovers in Europe: A Patent Citations Analysis[J] . Per BotolfMaurseth,BartVerspagen.Scandinavian Journal of Economics . 2002 (4)
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Measuring innovative performance: is there an advantage in using multiple indicators?[J] . John Hagedoorn,Myriam Cloodt.Research Policy . 2002 (8)
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International R&D spillovers[J] . David T. Coe,Elhanan Helpman.European Economic Review . 1995 (5)