@article{DAN_1967_175_5_a10,
     author = {V. P. Mikhailov},
     title = {A generalized {Tricomi} problem},
     journal = {Doklady Akademii Nauk},
     pages = {1012--1014},
     publisher = {mathdoc},
     volume = {175},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_5_a10/}
}