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@article{DE_1998_34_2_a13, author = {T. I. Kiguradze}, title = {On doubly periodic solutions of a class of nonlinear hyperbolic equations}, journal = {Differencialʹnye uravneni\^a}, pages = {238--245}, publisher = {mathdoc}, volume = {34}, number = {2}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1998_34_2_a13/} }
T. I. Kiguradze. On doubly periodic solutions of a class of nonlinear hyperbolic equations. Differencialʹnye uravneniâ, Tome 34 (1998) no. 2, pp. 238-245. http://geodesic.mathdoc.fr/item/DE_1998_34_2_a13/