TY  - JOUR 
T1  - Testing and validation of DRIS for apple tree
JO  - Scientia Agricola
A1  - Nachtigall, Gilmar Ribeiro
A1  - Dechen, Antonio Roque
SN  - 0103-9016
UL  - 10.1590/S0103-90162007000300012
VL  - 64 
Y1  - 2007
PB  - Brasil 
ER  -