@article{DE_1992_28_1_a8,
     author = {N. O. Egisbaev and M. A. Sadybekov},
     title = {On a problem conjugate to the generalized {Tricomi} problem for the {Lavrent'ev{\textendash}Bitsadze} equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {75--81},
     year = {1992},
     volume = {28},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_1_a8/}
}