Pombo, L. C. . A. (1995). Heavy metals uptake by rye grass (<i>Lolium multiflorum</i>) in two soils of the Rio Grande do Sul State. Pesquisa Agropecuaria Brasileira, 30(10), 1217–1224. https://doi.org/10.1590/S1678-3921.pab1995.v30.4417