Sílvia Fernandes Boaro, Carmen, et al. “Magnesium, Calcium and Potassium in Seeds and Cotyledons of Common Bean and Its Translocation to the Young Plants”. Pesquisa Agropecuaria Brasileira, vol. 33, no. 3, Mar. 1998, pp. 263-8, doi:10.1590/S1678-3921.pab1998.v33.4843.