TY - JOUR AU - R. G. Novikov TI - Weighted Radon transforms for which Chang's approximate inversion formula is exact JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2011 SP - 442 EP - 443 VL - 66 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_2011_66_2_a8/ LA - en ID - RM_2011_66_2_a8 ER -