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@article{DAN_1986_286_4_a18, author = {M. V. Karasev}, title = {Hidden symmetry of a system of equations of nonlinear optics. {Hysteresis}}, journal = {Doklady Akademii Nauk}, pages = {852--856}, publisher = {mathdoc}, volume = {286}, number = {4}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_286_4_a18/} }
M. V. Karasev. Hidden symmetry of a system of equations of nonlinear optics. Hysteresis. Doklady Akademii Nauk, Tome 286 (1986) no. 4, pp. 852-856. http://geodesic.mathdoc.fr/item/DAN_1986_286_4_a18/