TY  - BOOK
AU  - Helgason, Sigurdur
TI  - Groups and geometric analysis : Integral geometry, invariant differential operators and spherical functions
T2  - Mathematical surveys and monographs Vol.83
SN  - 9780821826737
U1  - 512.55 
PY  - 1984///
CY  - USA
PB  - American Mathematical Society
ER  -