%0 Journal Article %A Sigurdur Helgason %T The Inversion of the X-ray Transform on a Compact Symmetric Space %J Journal of Lie Theory %D 2007 %P 307-315 %V 17 %N 2 %U http://geodesic.mathdoc.fr/item/JOLT_2007_17_2_a4/ %F JOLT_2007_17_2_a4