Geodesic
A discrete variant of the Landau–Lifshitz equation
Zapiski Nauchnykh Seminarov POMI, Questions of quantum field theory and statistical physics. Part 5, Tome 145 (1985), pp. 62-71 
A. Yu. Volkov. A discrete variant of the Landau–Lifshitz equation. Zapiski Nauchnykh Seminarov POMI, Questions of quantum field theory and statistical physics. Part 5, Tome 145 (1985), pp. 62-71. http://geodesic.mathdoc.fr/item/ZNSL_1985_145_a4/
@article{ZNSL_1985_145_a4,
     author = {A. Yu. Volkov},
     title = {A discrete variant of the {Landau{\textendash}Lifshitz} equation},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {62--71},
     year = {1985},
     volume = {145},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1985_145_a4/}
}
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A lattice version of the Landau–Lifshitz equation in the theory of ferromagnets is considered by means of the inverse scattering problem method. Action-angle variables are constructed and the energy spectrum of the theory is described. She “dressing up” procedure is used to obtain the simplest soliton solution. Bibl. – 8.