Jerke, Caroline, et al. “Organic Carbon Distribution in an Oxisol under Phosphate Fertilizer Management and no‑tillage in the Cerrado”. Pesquisa Agropecuaria Brasileira, vol. 47, no. 3, Apr. 2012, pp. 442-8, doi:10.1590/S1678-3921.pab2012.v47.10123.