%0 Journal Article %A D. A. Popov %T Reconstruction of characteristic functions in two-dimensional Radon tomography %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1998 %P 109-193 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1998_53_1_a2/ %G en %F RM_1998_53_1_a2