00486nam a2200181Ia 4500082002000000100002300020245002200043260002900065300001500094490003300109500000500142690000600147700000500153952010200158964001700260921001000277999001700287  a515.24bH474.RT  aHelgason, Sigurdur  aRadon transformb  aBostonbBirkhauserc1980  avii, 192p.  aProgress in Mathematics v 5  a  a   a  00104070aISIbISId1998-09-18l0o515.24 H474.RTpDP17572r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a12266  c12266d12266