中国三种类型专利密度分布时空差异研究

曾鹏;赵聪

Three Types of Patent Density Distribution Variance Analysis on Provincial Level in China

Zeng Peng;Zhao Cong

科技进步与对策 . 2016, (21): 117 -125 . DOI: 10.6049/kjjbydc.2016010580