@article{GDZPPN002428792,
title = {Nonuniqueness in Inverse Radon Problems: The Frequency Distribution of the Ghosts.},
journal = {Mathematische Zeitschrift},
volume = {185},
year = {1984},
pages = {429-440},
zbl = {0519.65080},
url = {http://dml.mathdoc.fr/item/GDZPPN002428792}
}
Louis, Alfred K. Nonuniqueness in Inverse Radon Problems: The Frequency Distribution of the Ghosts.. Mathematische Zeitschrift, Tome 185 (1984) pp. 429-440. http://gdmltest.u-ga.fr/item/GDZPPN002428792/