%0 Journal Article %A P. I. Holod %T Hidden symmetry of the Landau--Lifshitz equation, hierarchy of higher equations, and the dual equation for an~asymmetric chiral field %J Teoretičeskaâ i matematičeskaâ fizika %D 1987 %P 18-29 %V 70 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1987_70_1_a1/ %G ru %F TMF_1987_70_1_a1