@article{DAN_1965_162_1_a5,
     author = {E. Sh. Chatskaya},
     title = {Some approximation problems on sets in the complex plane},
     journal = {Doklady Akademii Nauk},
     pages = {30--32},
     publisher = {mathdoc},
     volume = {162},
     number = {1},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_1_a5/}
}