@article{DAN_1958_122_1_a5,
     author = {V. G. Khriptun},
     title = {Functions analytical with respect to a hyperbolic operator involving two independent variables},
     journal = {Doklady Akademii Nauk},
     pages = {26--28},
     publisher = {mathdoc},
     volume = {122},
     number = {1},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_122_1_a5/}
}