%0 Journal Article %A O. K. Kedrov %T On the influence of the loose layer in the epicenter of underground nuclear explosion %J Doklady Akademii Nauk %D 1989 %P 1085-1090 %V 309 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_309_5_a13/ %G ru %F DAN_1989_309_5_a13