000			00411nmm a2200145Ia 4500
008			230201s9999||||xx |||||||||||||||||und||
020			_a9781489967657
100			_aSigurdur Helgason
245		4	_aThe Radon Transform
250			_a1980
260			_bBirkhäuser Boston _c1980
440			_aProgress in Mathematics
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-1-4899-6765-7
999			_c23444 _d23444