PIRES, L. F. <b>Gamma-ray computed tomography to evaluate changes in the structure of a clayey soil due to agricultural traffic</b&gt; - doi: 10.4025/actasciagron.v33i3.4727. Acta Scientiarum. Agronomy, v. 33, n. 3, p. 411-416, 11 abr. 2011.