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@article{MZM_1982_32_1_a7, author = {V. M. Isakov}, title = {Uniqueness of extension of solutions of hyperbolic equations}, journal = {Matemati\v{c}eskie zametki}, pages = {75--82}, publisher = {mathdoc}, volume = {32}, number = {1}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1982_32_1_a7/} }
V. M. Isakov. Uniqueness of extension of solutions of hyperbolic equations. Matematičeskie zametki, Tome 32 (1982) no. 1, pp. 75-82. http://geodesic.mathdoc.fr/item/MZM_1982_32_1_a7/