4FARREL M J. The measurement of Productive efficiency.Journal of Royal Stoical Society[J]. The General series, 1957,120(3) :253-281.
5YEH Q. The application of data development analysis in conjunction with financial ratios for bank Performance evaluation[J]. Journal of Operation Research Society, 1996,47(3) :980 988.
6AIGNER D, LOVELL C A K, SCHMIDT P. Formulation and estimation of stochastic frontier production function modes[J]. Journal of Econometrics, 1977,6 (1) : 21-37.
7CHARNES A,COOPER W W, et al. Measuring the effi ciency of decision making units[J]. European Journal of Operational Research, 1978(2) : 429-444.