@article{MZM_1977_21_6_a3,
     author = {V. A. Baskakov},
     title = {Asymptotics of the approximation of continuous and differentiable functions by the singular integrals of de la {Vall\'ee} {Poussin}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {769--776},
     publisher = {mathdoc},
     volume = {21},
     number = {6},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1977_21_6_a3/}
}