Sarvasi, Flávio de Oliveira Cunha, et al. “Soil Water Retention Curves by Tensiometers for Two Soils from Alfenas, MG, Brazil”. Pesquisa Agropecuaria Brasileira, vol. 27, no. 6, June 1992, pp. 893-00, doi:10.1590/S1678-3921.pab1992.v27.3723.