@article{VMJ_2023_25_4_a10,
     author = {A. K. Urinov and K. T. Karimov},
     title = {The {Tricomi--Neymann} problem for a three-dimensional mixed-type equation with singular coefficients},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {120--134},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2023_25_4_a10/}
}