Novak, L. R., Mantovani, E. C., Martyn, P. J., & Fernandes, B. (1992). Effect of the tractor traffic and of the tire-soil contact pressure on soil compaction, on a dark red alic latosol, at two moisture contents. Pesquisa Agropecuaria Brasileira, 27(12), 1587–1595. https://doi.org/10.1590/S1678-3921.pab1992.v27.3808