TY  - JOUR 
T1  - Orbital and laboratory spectral data to optimize soil analysis
JO  - Scientia Agricola
A1  - Fiorio, Peterson Ricardo
A1  - Demattê, José Alexandre M.
SN  - 0103-9016
UL  - 10.1590/S0103-90162009000200015
VL  - 66 
Y1  - 2009
PB  - Brasil 
ER  -