@article{TMF_1986_69_2_a1,
     author = {B. A. Malomed},
     title = {Evolution of solitonless wave packets in the nonlinear {Schr\"odinger} equation and the 
},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {175--188},
     publisher = {mathdoc},
     volume = {69},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1986_69_2_a1/}
}