@article{TVP_1973_18_4_a19,
     author = {\`E. A. Nadaraya},
     title = {On convergence in the $L_2$-norm of probability density estimates},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {853--856},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1973_18_4_a19/}
}