%0 Journal Article %A L. P. Vinnik %T The scattering of longitudinal waves in the upper mantle %J Doklady Akademii Nauk %D 1973 %P 1326-1329 %V 211 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_211_6_a20/ %G ru %F DAN_1973_211_6_a20