【作者(必填)】Raquel Ortega-Argilés, Mariacristina Piva & Marco Vivarelli

【文题(必填)】The productivity impact of R&D investment: are high-tech sectors still ahead?

【年份(必填)】 2015

【全文链接或数据库名称(选填)】http://libproxy.hzau.edu.cn/rewriter/TAYLOR_FRANCIS/http/vvv9s-mcenmkhmd9bnl/doi/full/10.1080/10438599.2014.918440