Agostinetto, D., Fontana, L. C., Vargas, L., Markus, C., & de Oliveira, E. (2013). Relative competitive ability of crabgrass in coexistence with flooded rice and soybean. Pesquisa Agropecuaria Brasileira, 48(10), 1315–1322. https://doi.org/10.1590/S1678-3921.pab2013.v48.16228