@article{DAN_1958_119_3_a1,
     author = {B. V. Boyarsky},
     title = {A special case of the {Riemann{\textendash}Hilbert} problem},
     journal = {Doklady Akademii Nauk},
     pages = {411--414},
     year = {1958},
     volume = {119},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_119_3_a1/}
}