@article{DAN_1978_241_3_a2,
     author = {V. I. Belyi and P. M. Tamrazov},
     title = {Moduli of smoothness and polynomial approximations of functions in quasi-conformal domains},
     journal = {Doklady Akademii Nauk},
     pages = {513--516},
     publisher = {mathdoc},
     volume = {241},
     number = {3},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_3_a2/}
}