%0 Journal Article %A V. N. Strakhov %T On the equivalence in the inverse problem of gravimetry at variable mass density %J Doklady Akademii Nauk %D 1977 %P 329-331 %V 236 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_236_2_a13/ %G ru %F DAN_1977_236_2_a13