2Benston, G. J., 1965: "Branch bankingand economies of scale" , Journal of Finance, 312 - 331.
3HunteA: W. C., Timme, S. G,, 1986: "Technical change, organizational form and the structure of bank production" , Journal of Money, Credit, and Banking 14, 435-56.
4Hanoch W. C. 1975: "The elasticity of scale and scope of the average cost" , American Economic Review 65,492 - 497.
5Sherman and Gold(1985): "Bank branch operating efficiency: Evaluation with data envelopment analysis" , Journal of Banking & Finance 9(2): 297 - 315.
6Charnes, A., W, Cooper, and E. Rhodes(1978): "measuring the efficiency of decision making units. " , European Journal of Operational Resrarch 2, 429 - 444.