Research on Efficiency Measure of Technological Innovation of the Construction Enterprises of Special Grade Qualification Based on the DEA-Tobit Model
Chen Xinghai;Lu Wenxia;Zhao Xingxiang
SCIENCE & TECHNOLOGY PROGRESS AND POLICY . 2016, (16): 17 -20 .  DOI: 10.6049/kjjbydc.2016GC0090

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