“Prediction of Soil Chemical Attributes Using Optical Remote Sensing - Doi: 10.4025 actasciagron.V33i4.7975”. Acta Scientiarum. Agronomy, vol. 33, nº 4, maio de 2011, p. 723-7, https://doi.org/10.4025/actasciagron.v33i4.7975.