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@article{IVM_1987_2_a3, author = {V. P. Burskiǐ}, title = {Boundary value problems for a~second-order hyperbolic equation in a~disk}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {22--29}, publisher = {mathdoc}, number = {2}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1987_2_a3/} }
V. P. Burskiǐ. Boundary value problems for a~second-order hyperbolic equation in a~disk. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1987), pp. 22-29. http://geodesic.mathdoc.fr/item/IVM_1987_2_a3/