Barr RS, LM Seiford and TF Siems (1993). “An Envelopment-Analysis Approach to Measuring the Managerial Efficiency of Banks.” Ann Oper Res 45(1-4): 1-19.
Barr RS, LM Seiford and TF Siems (1993). “An Envelopment-Analysis Approach to Measuring the Managerial Efficiency of Banks.” Ann Oper Res 45(1-4): 1-19.