@article{DAN_1977_237_4_a0,
     author = {G. A. Barsegyan},
     title = {A geometric approach to the problem of the branching of {Riemann} surfaces},
     journal = {Doklady Akademii Nauk},
     pages = {761--763},
     publisher = {mathdoc},
     volume = {237},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_237_4_a0/}
}