%0 Journal Article %A V. V. Volchkov %T Theorems on the injectivity of the Radon transform on spheres %J Doklady Akademii Nauk %D 1997 %P 298-300 %V 354 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_354_3_a1/ %G ru %F DAN_1997_354_3_a1