Journal of productivity analysis. 2012;37(3):261-276. doi: 10.1007/s11123-011-0239-x Q21.82025
Categorical and continuous non-discretionary variables in data envelopment analysis: a comparison of two single-stage models
数据包络分析中的分类与连续非自由变量：两种单阶段模型的比较
DOI: 10.1007/s11123-011-0239-x
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