TY  - JOUR
AU  - I. A. Ibragimov
TI  - Low bounds for risk functions in non-parametric estimation problems
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2011
SP  - 102
EP  - 110
VL  - 396
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2011_396_a6/
LA  - ru
ID  - ZNSL_2011_396_a6
ER  -