%0 Journal Article %A B. A. Malomed %T Evolution of solitonless wave packets in the nonlinear Schrödinger equation and the %J Teoretičeskaâ i matematičeskaâ fizika %D 1986 %P 175-188 %V 69 %N 2 %U http://geodesic.mathdoc.fr/item/TMF_1986_69_2_a1/ %G ru %F TMF_1986_69_2_a1