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@article{DAN_1986_288_1_a12, author = {S. M. Ponomarev}, title = {An ill-posed problem in the nonlinear theory of waves}, journal = {Doklady Akademii Nauk}, pages = {58--63}, publisher = {mathdoc}, volume = {288}, number = {1}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_288_1_a12/} }
S. M. Ponomarev. An ill-posed problem in the nonlinear theory of waves. Doklady Akademii Nauk, Tome 288 (1986) no. 1, pp. 58-63. http://geodesic.mathdoc.fr/item/DAN_1986_288_1_a12/