References
- Charnes , A. , Cooper , W. W. , Lewin , A. and Seiford , L. M. 1994 . Data Envelopment Analysis: Theory, Methodology and Applications , Boston : Kluwer Academic Publishers .
- Farrell , M. J. 1957 . The measurement of productive efficiency . Journal of Royal Statistical Society, Series A , 120 : 253 – 290 .
- Norsworthy , J. R. and Jang , S. L. 1992 . Empirical Measurement and Analysis of Productivity and Technological Change , Amsterdam : North Holland .
- Schefczyk , M. 1993 . Operational performance of airlines: an extension of traditional measurement paradigms . Strategic Management Journal , 14 : 301 – 317 .
- Sengupta , J. K. 1995 . Dynamics of Data Envelopment Analysis , Boston : Kluwer Academic Publishers .