我国战略性新兴节能环保企业R&D投资效率研究
尚洪涛 昝星灼
Research of Strategic Emerging E nergy-saving and Environment Protection Enterprises R&D Investment Efficiency〖JZ)〗〖STBZ〗
Shang Hongtao Zan Xingzhuo
. 2013, (11): 0 -0 .