Franco, Avílio Antônio, and Johanna Döbereiner. 2014. “Interference of Calcium and Nitrogen in Symbiotic Nitrogen Fixation of Two Bean Varieties (Phaseolus Vulgaris L.)”. Pesquisa Agropecuaria Brasileira 3 (1): 223-27. https://doi.org/10.1590/S1678-3921.pab1968.v3.17941.