@article{SM_2010_201_8_a0,
     author = {S. B. Vakarchuk and M. Sh. Shabozov},
     title = {The widths of classes of analytic functions in a~disc},
     journal = {Sbornik. Mathematics},
     pages = {1091--1110},
     publisher = {mathdoc},
     volume = {201},
     number = {8},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2010_201_8_a0/}
}