TY  - JOUR 
T1  - An efficient indoor ray-tracing propagation model with a quasi-3D approach
JO  - Journal of Microwaves, Optoelectronics and Electromagnetic Applications
A1  - Grubisic, Stevan
A1  - Carpes Jr, Walter Pereira
SN  - 2179-1074
UL  - 10.1590/S2179-10742014000200005
VL  - 13 
Y1  - 2014
PB  - Brasil 
ER  -