%0 Journal Article %A Ya. B. Zel'dovich %A P. I. Kolykhalov %T Instability of an extended tangential discontinuity: first term in the expansion in the wave vector %J Doklady Akademii Nauk %D 1982 %P 302-304 %V 266 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_266_2_a11/ %G ru %F DAN_1982_266_2_a11