Oliveira, Antonio Alberto Rocha, and Francis Edward Sanders. “Effect of Management Practices on Mycorrhizal Infection, Growth and Dry Matter Partitioning in Field-Grown Bean”. Pesquisa Agropecuaria Brasileira, vol. 34, no. 7, July 1999, pp. 1247-54, doi:10.1590/S1678-3921.pab1999.v34.5308.