PDF(2200 KB)
Three Types of Patent Density Distribution Variance Analysis on Provincial Level in China
Zeng Peng;Zhao Cong
Science & Technology Progress and Policy ›› 2016, Vol. 33 ›› Issue (21) : 117-125.
PDF(2200 KB)
PDF(2200 KB)
Three Types of Patent Density Distribution Variance Analysis on Provincial Level in China
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