Sobral, Antônio Fernando de, and Vladimir Oliveira da Silva Guimarães. “Relation Between Aluminum Toxicity and Sugarcane (<i>Saccharum< i> Spp.)”. Pesquisa Agropecuaria Brasileira, vol. 27, no. 2, Feb. 1992, pp. 287-92, doi:10.1590/S1678-3921.pab1992.v27.3649.