%0 Journal Article %A V. G. Makaryan %A N. E. Molevich %A D. P. Porfir'ev %T The classification of gas-dynamic structures described by the nonlinear acoustical equation of a~relaxing medium %J Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ %D 2009 %P 92-104 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGU_2009_6_a9/ %G ru %F VSGU_2009_6_a9