References
- Anscombe , F. J. 1973 . Graphs in statistical analysis . American Statistician , 27 : 17 – 21 .
- Chatterjee , S. and Hadi , A. S. 1988 . Sensitivity Analysis in Linear Regression , New York : Wiley .
- Hampel , F. R. 1971 . A general qualitative definition of robustness . Annals of Mathematical Statistics , 42 : 1887 – 1896 .
- Hampel , F. R. 1974 . The influence curve and its role in robust estimation . Journal of the American Statistical Association , 69 : 383 – 393 .
- Neter , J. , Wasserman , W. and Kutner , M. H. 1990 . Applied Linear Statistical Models , 3rd , Homewood, IL : Irwin .
- Staudte , R. G. and Sheather , S. J. 1990 . Robust Estimation and Testing , New York : Wiley .