Daouia A and A Ruiz-Gazen (2006). “Robust Nonparametric Frontier Estimators: Qualitative Robustness and Influence Function.” Statistica Sinica 16(4): 1233-1253.
Daouia A and A Ruiz-Gazen (2006). “Robust Nonparametric Frontier Estimators: Qualitative Robustness and Influence Function.” Statistica Sinica 16(4): 1233-1253.