@article{SM_2016_207_9_a2,
     author = {E. A. Rakhmanov},
     title = {The {Gonchar-Stahl} $\rho^2$-theorem and associated directions in the theory of rational approximations of analytic functions},
     journal = {Sbornik. Mathematics},
     pages = {1236--1266},
     year = {2016},
     volume = {207},
     number = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2016_207_9_a2/}
}