PDF(10300 KB)
Spatio-temporal Evolution and Influencing Factors of Urban Patent Scale and Patent Knowledge Width in China
XI Qiangmin, ZHANG Jingle, ZHANG Keyun
Economic geograph ›› 2022, Vol. 42 ›› Issue (3) : 56-65.
PDF(10300 KB)
PDF(10300 KB)
Spatio-temporal Evolution and Influencing Factors of Urban Patent Scale and Patent Knowledge Width in China
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