%0 Journal Article %A A. S. Alekseev %A G. M. Tsybul'chik %T A numerical method for determining mean earth crust characteristics from seismograms of remote earthquakes %J Doklady Akademii Nauk %D 1969 %P 92-95 %V 186 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_186_1_a22/ %G ru %F DAN_1969_186_1_a22