Silveira, Andréa Maria, et al. “Simulation of the Effects of Land Use Changes in Soil Carbon Dynamics in the Piracicaba River Basin, São Paulo State, Brazil”. Pesquisa Agropecuaria Brasileira, vol. 35, no. 2, Feb. 2000, pp. 389-9, doi:10.1590/S1678-3921.pab2000.v35.5776.