TY  - JOUR
TI  - Nonparametric frontier estimation: a robust approach
AU  - Catherine Cazals
AU  - Jean‐Pierre Florens
AU  - Léopold Simar
JO  - Journal of Econometrics
PY  - 2002
VL  - 106
IS  - 1
DO  - 10.1016/s0304-4076(01)00080-x
UR  - https://doi.org/10.1016/s0304-4076(01)00080-x
ER  -