TY  - JOUR 
T1  - 
       
JO  - Brazilian Journal of Physics
A1  - Binder, J. B.
A1  - Kremer, G. M.
SN  - 0103-9733
UL  - 10.1590/S0103-97332005000700003
VL  - 35 
Y1  - 2005
PB  - Brazil 
ER  -