TY  - JOUR
AU  - Joachim Wambsganss
TI  - Gravitational Lensing in Astronomy
T2  - Living Reviews in Relativity
PY  - 1998
VL  - 1
IS  - 12
C7  - lrr-1998-12
DA  - 1998/11/02/
UR  - http://www.livingreviews.org/lrr-1998-12
DO  - 10.12942/lrr-1998-12
ER  -