Schaefer, Carlos Ernesto Reynaud, et al. “Soil, Nutrient and Organic Matter Losses in a Red-Yellow Podzolic under Simulated Rainfall”. Pesquisa Agropecuaria Brasileira, vol. 37, no. 5, May 2002, pp. 669-78, doi:10.1590/S1678-3921.pab2002.v37.6388.