%0 Journal Article %A Yu. F. Kopnichev %T Non Regular seismic waves and the characteristics of asthenosphere under the %J Doklady Akademii Nauk %D 1983 %P 1355-1358 %V 272 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_272_6_a18/ %G ru %F DAN_1983_272_6_a18