@article{TVP_1990_35_1_a7,
     author = {A. S. Nemirovskiǐ},
     title = {Necessary conditions for efficient estimation of functionals of a~nonparametric signal observed in white noise},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {83--91},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1990_35_1_a7/}
}