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@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/} }
S. N. Timergaliev. The Tricomi problem in the case of a multiply connected domain. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 24 (1990) no. 24, pp. 213-221. http://geodesic.mathdoc.fr/item/KUKZ_1990_24_24_a19/