4Banker, R. D.; Chames, A. and Cooper, W. W.: Some Models for Eslimaling Technical and Scale Inefficiencies in Data Envelopment Analysis, Management Science, 30(9): 1078-1092, 1984.
5Charnes, A.; Cooper, W. W. and Rhodes, E.: Measuring the Efficiency of Decision Making Units, European Journal of Operational Research, 2: 429-444, 1978.
6Farrell, M. J.: The Measurement of Productive Efficiency, Journal of the Royal Statistical Society: Series A, 120 (Part 3): 253-281, 1957.
7Golany, B. and Roll, Y.: An Application Procedure for DEA, Omega, 17(3): 237-250, 1989.
8Lovell, C. A. K.; Fare H. O. and Schmidt, S. S.: The Measurement of Productive Efficiency: Techniques and Applications, Oxford University Press, 1993.
