RESEARCH-AND-DEVELOPMENT, PATENTS, AND PRODUCTIVITY - GRILICHES,Z

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作者：
VANCRAEYENEST, O
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WELTWIRTSCHAFTLICHES ARCHIV-REVIEW OF WORLD ECONOMICS | 1985年 / 121卷 / 04期
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F [经济];
学科分类号：
02 ;
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页码：792 / 794
页数：3
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