Cooper WW, H Deng, ZM Huang and SX Li (2002). “A One-Model Approach to Congestion in Data Envelopment Analysis.” Socio-Econ Plan Sci 36(4): 231.

Cooper WW, H Deng, ZM Huang and SX Li (2002). “A One-Model Approach to Congestion in Data Envelopment Analysis.” Socio-Econ Plan Sci 36(4): 231.

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