@article{KUKZ_1990_24_24_a19,
     author = {S. N. Timergaliev},
     title = {The {Tricomi} problem in the case of a multiply connected domain},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {213--221},
     publisher = {mathdoc},
     volume = {24},
     number = {24},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1990_24_24_a19/}
}