@article{DAN_1983_272_3_a1,
     author = {P. I. Lizorkin and S. M. Nikol'skii},
     title = {Approximation on a sphere in the metric of the continuous functions},
     journal = {Doklady Akademii Nauk},
     pages = {524--528},
     publisher = {mathdoc},
     volume = {272},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_272_3_a1/}
}