%0 Journal Article %A Yu. P. Neprochnov %A L. N. Rykunov %T Experimental data on the layer of increased velocity in the Earth's upper mantle %J Doklady Akademii Nauk %D 1970 %P 80-82 %V 194 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_194_1_a18/ %G ru %F DAN_1970_194_1_a18