TY  - GEN
AU  - Hall,G.S.
AU  - Mall,G.S.
AU  - Hall,GS
TI  - Symmetries and curvature structure in general relativity
T2  - Lecture notes in physics
SN  - 9810210515
U1  - 539.725 
PY  - 2004///
CY  - [S.l.]
PB  - World Scientific Publishing Company
ER  -