@article{MZM_1982_31_6_a3,
     author = {A. I. Kamzolov},
     title = {Approximation of smooth functions on the sphere~$S^n$ by the {Fourier} method},
     journal = {Matemati\v{c}eskie zametki},
     pages = {847--853},
     publisher = {mathdoc},
     volume = {31},
     number = {6},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1982_31_6_a3/}
}