de Freitas, L. G., M. A. Z. Pede, and H. K. Chang. “Direct-Push Techniques Applied to High-Resolution Lithostratigraphic Characterization in Alluvial Environment”. Águas Subterrâneas, vol. 31, no. 4, Oct. 2017, pp. 355-64, doi:10.14295/ras.v31i4.28902.