TY  - BOOK
AU  - Helgason, S.
TI  - Groups and geometric analysis: integral geometry, invariant differential operators, and spherical functions 
SN  - 9780821826737
U1  - 512.81:514.7 
PY  - 2002///
CY  - USA
PB  - AMS
KW  - DIFFERENTIAL GEOMETRY
KW  - LIE GROUPS
ER  -