1. A general qualitative definition of robustness;Hampel;Annals of Mathematical Statistics,1971
2. Robust Statistics;Huber,1981
3. Robust Statistics: the Approach Based on Influence Functions;Hampel,1986
4. A. Weber, Über den standort der industrien, Tubingen. English translation by C. Friedrich (1929): Alfred Weber's Theory of Location of Industries, University of Chicago Press, 1909.
5. Robust Regression and Outlier Detection;Rousseeuw,1987