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@article{DE_1988_24_12_a20, author = {S. V. Zhestkov}, title = {Doubly periodic solutions of quasilinear hyperbolic partial differential systems}, journal = {Differencialʹnye uravneni\^a}, pages = {2164--2166}, publisher = {mathdoc}, volume = {24}, number = {12}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1988_24_12_a20/} }
S. V. Zhestkov. Doubly periodic solutions of quasilinear hyperbolic partial differential systems. Differencialʹnye uravneniâ, Tome 24 (1988) no. 12, pp. 2164-2166. http://geodesic.mathdoc.fr/item/DE_1988_24_12_a20/