TY  - JOUR 
T1  - Light on dark matter: gravitational lensing by galaxy clusters
JO  - Brazilian Journal of Physics
A1  - Sodré Jr., Laerte
SN  - 0103-9733
UL  - 10.1590/S0103-97332005000700041
VL  - 35 
Y1  - 2005
PB  - Brasil 
ER  -