TY  - JOUR
AU  - V. V. Volchkov
TI  - Injectivity sets for the Radon transform over a~sphere
JO  - Izvestiya. Mathematics 
PY  - 1999
SP  - 481
EP  - 493
VL  - 63
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1999_63_3_a1/
LA  - en
ID  - IM2_1999_63_3_a1
ER  -