@article{SM_1974_23_2_a5,
     author = {A. A. Gonchar},
     title = {The rate of rational approximation and the property of single-valuedness of an analytic function in the neighborhood of an isolated singular point},
     journal = {Sbornik. Mathematics},
     pages = {254--270},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1974},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1974_23_2_a5/}
}