TY  - JOUR 
T1  - Green's functions for the wave, Helmholtz and Poisson equations in a two-dimensional boundless domain
JO  - Revista Brasileira de Ensino de Física
A1  - Couto, Roberto Toscano
SN  - 1806-1117
UL  - 10.1590/S1806-11172013000100004
VL  - 35 
Y1  - 2013
PB  - Brazil 
ER  -