Souto, S.M. and Döbereiner, J. 2014. Manganese toxicity, phosphorus and calcium in two varieties of perennial soybeans (<i>Glycine javanica</i> L.). Pesquisa Agropecuaria Brasileira. 4, 1 (Apr. 2014), 59–66. DOI:https://doi.org/10.1590/S1678-3921.pab1969.v4.17778.