@article{CRMATH_2002__335_12_1033_0,
     author = {Alexander G. Ramm},
     title = {Injectivity of the spherical means operator},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1033--1038},
     publisher = {Elsevier},
     volume = {335},
     number = {12},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02608-0},
     language = {en},
}