%0 Journal Article %A Alfred K. Louis %A Andreas Rieder %T Incomplete Data problems in X-Ray Computerized Tomography. II. Truncated Projections and Region-of-Interest Tomography. %J Numerische Mathematik %D 1989 %P 371-384 %V 56 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133403/ %F NUMA_1989__56_2-3_133403