%0 Journal Article %A R. G. Novikov %T Weighted Radon transforms for which Chang's approximate inversion formula is exact %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2011 %P 442-443 %V 66 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2011_66_2_a8/ %G en %F RM_2011_66_2_a8