TY  - JOUR 
T1  - Augmented reality systems for weed economic thresholds applications
JO  - Planta Daninha
A1  - Vidal, N.R.
A1  - Vidal, R.A.
SN  - 0100-8358
UL  - 10.1590/S0100-83582010000200025
VL  - 28 
Y1  - 2010
PB  - Brazil 
ER  -