%0 Journal Article %A V. P. Maslov %A V. A. Tsupin %T Necessary conditions for the existence of infinitesimally narrow solitons in gas dynamics %J Doklady Akademii Nauk %D 1979 %P 298-300 %V 246 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_246_2_a9/ %G ru %F DAN_1979_246_2_a9