@article{IM2_1981_16_2_a0,
     author = {V. V. Andrievskii},
     title = {Direct theorems of approximation theory on quasiconformal arcs},
     journal = {Izvestiya. Mathematics },
     pages = {221--238},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1981_16_2_a0/}
}