Ferreras, L. A., Battista, J. J. de, Ausilio, A., & Pecorari, C. (2001). Physical parameters of a soil under minimum tillage and non-disturbed conditions. Pesquisa Agropecuaria Brasileira, 36(1), 161–170. https://doi.org/10.1590/S1678-3921.pab2001.v36.6097