TY  - JOUR
AU  - Boman, Jan
TI  - On the closure of spaces of sums of ridge functions and the range of the $X$-ray transform
JO  - Annales de l'Institut Fourier
PY  - 1984
SP  - 207
EP  - 239
VL  - 34
IS  - 1
PB  - Imprimerie Louis-Jean
PP  - Gap
UR  - https://aif.centre-mersenne.org/articles/10.5802/aif.957/
DO  - 10.5802/aif.957
LA  - en
ID  - AIF_1984__34_1_207_0
ER  -