@article{DAN_1990_315_2_a13,
     author = {V. N. Rusak},
     title = {Exact orders of best rational approximations of a convolution of the {Weyl} kernel, and functions from $L_p$},
     journal = {Doklady Akademii Nauk},
     pages = {313--316},
     publisher = {mathdoc},
     volume = {315},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_315_2_a13/}
}