%0 Journal Article %A A. B. Goncharov %T Methods of integral geometry and the determination of the mutual %J Doklady Akademii Nauk %D 1987 %P 355-358 %V 293 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1987_293_2_a20/ %G ru %F DAN_1987_293_2_a20