3Berger,A.N,Humphrey,D.B.“Efficiency of finan-cial institutions:International survey and directions for future re-search”. European Journal of Operational Research . 1997
4Benston,G.J.“Branch banking and economies ofscale”. The Journal of Finance . 1965
5Beston,J.A,Hanweek,G.A,,Humphrey.“Scale ofeconomies in banking:A reconstruction reassessment”. Journalof Money,Credit and Banking . 1982
6Nikiel,Ewa M,Opiela Timothy P.Customer type andbank efficiency in Poland:implication for emerging market bank-ing. Contemporary Economic Policy . 2002
4Benston, G. J., 1965: "Branch banking and economies of scale" , Journal of Finance, 312-331.
5Beston, J.A., Hanweek, G. A, Humphrey, 1982:"Scale of economies in banking: A reconstruction reassessment". Journal of Money, Credit and Banking, 14, 435-456.
6Berger, A. N., Humphrey, D. B., 1997: "Efficiency of financial institutions: International survey and directions for future research" , European Journal of Operational Research 98 175-212.
7Edwards, F. R., Heggestad A. A., 1973: "Uncertainty, market structure and performance: the Galbraith-Caves hypothesis and managerial motives in banking", Quarterly Journal of Economics, 87, 455-473.
8Hanoch, G.1975.The elasticity of scale and scope of the average cost. American Economic Review 65, 492-497.
9Hunter 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.
10Nikiel, Ewa M., Opiela Timothy P., 2002: Customer type and bank efficiency in Poland: implication for emerging market banking. Contemporary Economic Policy, 20,255-271.
