@article{ZNSL_1994_216_a7,
     author = {A. Yu. Zaitsev},
     title = {Non-stability of the inversion of the {Radon} transform},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {76--85},
     publisher = {mathdoc},
     volume = {216},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1994_216_a7/}
}