TY  - BOOK
AU  - Ludvigsen, Malcolm
TI  - General Relativity: A Geometric Approach
SN  - 0521630193
U1  - 530.11 
PY  - 1999///
CY  - Cambridge
PB  - Cambridge University Press
KW  - General Relativity(Physics
KW  - Space and Time
ER  -