@article{SM_1977_32_1_a7,
     author = {E. P. Dolzhenko},
     title = {On the dependence of the boundary properties of an analytic function on the rapidity of its approximation by rational functions},
     journal = {Sbornik. Mathematics},
     pages = {116--126},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1977_32_1_a7/}
}