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@article{DE_1976_12_11_a19, author = {A. M. Filimonov}, title = {Periodic solutions of certain nonlinear partial differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {2076--2084}, publisher = {mathdoc}, volume = {12}, number = {11}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_11_a19/} }
A. M. Filimonov. Periodic solutions of certain nonlinear partial differential equations. Differencialʹnye uravneniâ, Tome 12 (1976) no. 11, pp. 2076-2084. http://geodesic.mathdoc.fr/item/DE_1976_12_11_a19/