@article{SM_1971_13_4_a0,
     author = {V. A. Malyshev},
     title = {Wiener--Hopf equations in a~quadrant of the plane, discrete groups, and automorphic functions},
     journal = {Sbornik. Mathematics},
     pages = {491--516},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1971_13_4_a0/}
}