@article{DAN_1964_155_3_a12,
     author = {S. A. Tersenov},
     title = {The {Riemann--Hilbert} problem for a system of equations degenerating at the boundary},
     journal = {Doklady Akademii Nauk},
     pages = {538--541},
     publisher = {mathdoc},
     volume = {155},
     number = {3},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_155_3_a12/}
}