@article{DAN_1958_118_2_a3,
     author = {G. V. Zhidkov},
     title = {Boundary properties of differentiable and harmonic functions in regions containing salient points},
     journal = {Doklady Akademii Nauk},
     pages = {225--227},
     publisher = {mathdoc},
     volume = {118},
     number = {2},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_118_2_a3/}
}