TY  - GEN
AU  - Ehlers, J.
AU  - Schafer, G.
AU  - 
TI  - RELATIVISTIC GRAVITY RESEARCH
SN  - 3540561803
U1  - 530.08 
PY  - 0000///
CY  - 
PB  - 
KW  - Physics
UR  - http://link.springer.com/bookseries/5304
ER  -