TY  - JOUR 
T1  - Path integrals and perturbation theory for stochastic processes
JO  - Brazilian Journal of Physics
A1  - Dickman, Ronald
A1  - Vidigal, Ronaldo
SN  - 0103-9733
UL  - 10.1590/S0103-97332003000100005
VL  - 33 
Y1  - 2003
PB  - Brasil 
ER  -