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@article{MT_1994_26_a4, author = {E. I. Romenskii}, title = {Symmetric form of the equations of a nonlinear {Maxwell} medium}, journal = {Matemati\v{c}eskie trudy}, pages = {91--106}, publisher = {mathdoc}, volume = {26}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MT_1994_26_a4/} }
E. I. Romenskii. Symmetric form of the equations of a nonlinear Maxwell medium. Matematičeskie trudy, Tome 26 (1994), pp. 91-106. http://geodesic.mathdoc.fr/item/MT_1994_26_a4/