Sans, L. M. A.; Demattê, J. L. I.; Carvalho, A. Physical, Chemical and Mineralogical Properties of a Soil Catena on Shale . An. Esc. Super. Agr. Luiz de Queiroz 1977, 34, 45-59. https://doi.org/10.1590/S0071-12761977000100004.