@article{IVM_1968_1_a0,
     author = {V. A. Baskakov},
     title = {The approxiamation of functions by certain singular integrals.},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--15},
     year = {1968},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1968_1_a0/}
}