@article{NUMA_1978__30_132539,
     author = {F. Natterer},
     title = {Numerical {Inversion} of the {Radon} {Transform.}},
     journal = {Numerische Mathematik},
     pages = {81--92},
     year = {1978},
     volume = {30},
     zbl = {0425.65073},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1978__30_132539/}
}