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@article{DAN_1962_146_1_a7, author = {B. M. Levitan}, title = {On the continuation of solutions of partial differential equations}, journal = {Doklady Akademii Nauk}, pages = {30--33}, publisher = {mathdoc}, volume = {146}, number = {1}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_146_1_a7/} }
B. M. Levitan. On the continuation of solutions of partial differential equations. Doklady Akademii Nauk, Tome 146 (1962) no. 1, pp. 30-33. http://geodesic.mathdoc.fr/item/DAN_1962_146_1_a7/