%0 Journal Article %A L. A. Kalyakin %T Asymptotic decay of a~one-dimensional wave packet in a~nonlinear dispersive medium %J Sbornik. Mathematics %D 1988 %P 457-483 %V 60 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1988_60_2_a13/ %G en %F SM_1988_60_2_a13