@article{TMF_1985_63_1_a3,
     author = {A. N. Leznov and V. I. Man'ko and S. M. Chumakov},
     title = {Symmetries and soliton solutions of nonlinear equations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {50--63},
     publisher = {mathdoc},
     volume = {63},
     number = {1},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1985_63_1_a3/}
}