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@article{MZM_1999_65_2_a14, author = {S. D. Troitskaya}, title = {On the first boundary value problem for a~hyperbolic equation in the plane}, journal = {Matemati\v{c}eskie zametki}, pages = {294--306}, publisher = {mathdoc}, volume = {65}, number = {2}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1999_65_2_a14/} }
S. D. Troitskaya. On the first boundary value problem for a~hyperbolic equation in the plane. Matematičeskie zametki, Tome 65 (1999) no. 2, pp. 294-306. http://geodesic.mathdoc.fr/item/MZM_1999_65_2_a14/