Charnes A and ZM Huang (1990). “Polyhedral Cone-Ratio DEA Models with an Ilustractive Application to Large Commercial Banks.” J Econometrics 46: 73-91.

Charnes A and ZM Huang (1990). “Polyhedral Cone-Ratio DEA Models with an Ilustractive Application to Large Commercial Banks.” J Econometrics 46: 73-91.

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