@article{article06efd976,
title   = {Soil chemical alterations promoted by fertilizer application assessed by spectral reflectance},
author = {Demattê, José Alexandre Melo and Pereira, H. S. and Nanni, M. R. and Cooper, Miguel and Fiorio, P. R.},
year = {2003},
doi = {10.1097/01.ss.0000095146.68539.09},
journal   = {Soil Science}
}