Sueyoshi T (1991). “Estimation of Stochastic Frontier Cost Function Using Data Envelopment Analysis. An Application to the A.T&T. Divestiture.” JORS 42(6): 463-477.

Sueyoshi T (1991). “Estimation of Stochastic Frontier Cost Function Using Data Envelopment Analysis. An Application to the A.T&T. Divestiture.” JORS 42(6): 463-477.

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