Rosa Junior, Edgard Jardim, et al. “LIME AND GYPSUM AS PHYSICAL AND CHEMICAL CONDITIONERS OF A SAVANNAH SOIL UNDER THREE MANAGEMENT SYSTEMS”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 36, no. 1, Oct. 2007, pp. 37-44, https://doi.org/10.5216/pat.v36i1.2170.