题目:Inter-industry R&D spillovers: What difference do they make?
链接:http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V8P-3Y5FD8C-S&_user=10&_coverDate=06%2F30%2F1995&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1419290606&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e734b7b45de58c42383ff395e3d611a7


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