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郭溪川,卢垚,王婷,袁雪
Characteristic analysis of the world agricultural innovation based on patent family
GUO Xichuan, LU Yao, WANG Ting, YUAN Xue
农业图书情报学刊 . 2017, (8): 11 -16 .  DOI: 10.13998/j.cnki.issn1002-1248.2017.08.002