@article{VKAM_2014_1_a4,
     author = {R. T. Zunnunov and M. A. Mamasolieva},
     title = {A nonlocal boundary value problem for a mixed-type equation in an unbounded domain, which is part of an elliptic rectangle},
     journal = {Vestnik KRAUNC. Fiziko-matemati\v{c}eskie nauki},
     pages = {49--59},
     publisher = {mathdoc},
     number = {1},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VKAM_2014_1_a4/}
}