%0 Journal Article %A A. N. Tikhonov %A V. I. Dmitriev %A B. S. Ènenstein %T Perspectives of development of deep soundings by transient electromagnetic field %J Doklady Akademii Nauk %D 1987 %P 1089-1092 %V 295 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1987_295_5_a14/ %G ru %F DAN_1987_295_5_a14