Silveira, P. M. da, Zimmermann, F. J. P., Silva, S. C. da, & Cunha, A. A. da. (2000). Sampling size and spatial variability of chemical properties of a latosol subjected to different soil preparations. Pesquisa Agropecuaria Brasileira, 35(10), 2057–2064. https://doi.org/10.1590/S1678-3921.pab2000.v35.6000