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@article{IVM_1987_11_a2, author = {O. V. Zaǐitseva}, title = {Well-posedness of a~new model nonstrictly hyperbolic mixed problem}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {10--12}, publisher = {mathdoc}, number = {11}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1987_11_a2/} }
O. V. Zaǐitseva. Well-posedness of a~new model nonstrictly hyperbolic mixed problem. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (1987), pp. 10-12. http://geodesic.mathdoc.fr/item/IVM_1987_11_a2/