@article{TMF_1982_52_3_a6,
     author = {A. V. Zhiber},
     title = {Systems of equations of $n$-waves and nonlinear {Schr\"odinger} equations from the group-theoretical point of view},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {405--413},
     year = {1982},
     volume = {52},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1982_52_3_a6/}
}