@article{TMF_1979_38_1_a2,
     author = {V. E. Zakharov and L. A. Takhtadzhyan},
     title = {Equivalence of the nonlinear {Schr\"odinger} equation and the equation of {a~Heisenberg} ferromagnet},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {26--35},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1979_38_1_a2/}
}