Castro, Gustavo Spadotti Amaral, et al. “Soil Physical Properties in Crop Rotation Systems As Affected by Liming Materials”. Pesquisa Agropecuaria Brasileira, vol. 46, no. 12, Feb. 2012, pp. 1690-16998, doi:10.1590/S1678-3921.pab2011.v46.10362.