Tanaka, R. T., Mascarenhas, H. A. A., Dias, O. S., Campidelli, C., & Bulisani, E. A. (1992). Growing soybeans after green and organic manure. Pesquisa Agropecuaria Brasileira, 27(11), 1477–1483. https://doi.org/10.1590/S1678-3921.pab1992.v27.3794