Tzanidakis G (1998). “Regression Versus Data Envelopment Analysis for Efficiency Measurement: An Application to the England and Wales Regulated Water Industry.” Utilities Policy 7: 75-85.
Tzanidakis G (1998). “Regression Versus Data Envelopment Analysis for Efficiency Measurement: An Application to the England and Wales Regulated Water Industry.” Utilities Policy 7: 75-85.