%0 Journal Article %A S. M. Ponomarev %T On one ill-posed problem in the theory of an underground explosion %J Doklady Akademii Nauk %D 1984 %P 595-599 %V 278 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1984_278_3_a20/ %G ru %F DAN_1984_278_3_a20