TY  - BOOK
AU  - Schneider,P,Ehlers,J
AU  - Falco,E E
TI  - GRAVITATIONAL LENSES
SN  - 3540665064
U1  - 522.6 
PY  - 1999///
CY  - 
PB  - Springer-Verlag, Berlin
KW  - Gravitational Lenses
ER  -