8Cooper L M,Seiford K,Tone E J.Some models and measures for evaluating performances with DEA:past accomplishments and future prospects[J].J Prod Anal,2007,28:151-163.
9Wade D Cook,Joe Zhu.Classifying inputs and outputs in data envelopment analysis[J].European Journal of Operational Research,2007,180:692-699.
10Myungsup Kim,Yangseon Kim,Peter Schmidt.On the accuracy of bootstrap confidence intervals for efficiency levels in stochastic frontier models with panel data[J].J Prod Anal,2007,28:165-181.
