@article{DAN_1974_214_2_a14,
     author = {N. A. Shirokov},
     title = {On weighted approximations on closed sets with corners},
     journal = {Doklady Akademii Nauk},
     pages = {295--297},
     publisher = {mathdoc},
     volume = {214},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_214_2_a14/}
}