美国创新生态系统发展特征及启示
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1004-9479|26|2|33-43
ISSN: 1004-9479
Source: 世界地理研究, Vol.26, Iss.2, 2017-01, pp. : 33-43
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Abstract