Souto, Sebastião Manhães, and Johanna Döbereiner. “Manganese Toxicity, Phosphorus and Calcium in Two Varieties of Perennial Soybeans (<i>Glycine javanica< I> L.)”. Pesquisa Agropecuaria Brasileira, vol. 4, no. 1, Apr. 2014, pp. 59-66, doi:10.1590/S1678-3921.pab1969.v4.17778.