TY  - JOUR 
T1  - Modified symplectic structures in cotangent bundles of lie groups
JO  - Brazilian Journal of Physics
A1  - Vanhecke, F.J.
A1  - Sigaud, C.
A1  - Silva, A.R. da
SN  - 0103-9733
UL  - 10.1590/S0103-97332009000100003
VL  - 39 
Y1  - 2009
PB  - Brasil 
ER  -