<div style="line-height: 150%">基于德温特专利分类号耦合的技术多缘性与技术相似性研究*</div> <div style="line-height: 150%">—

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温芳芳

Research on the Technology Diversity and Similarity Based on the Coupling of Derwent Patent Classification Codes

情报理论与实践 . 2017, (8): 87 -92 . DOI: 1016353/jcnki10007490201708016