@article{silveira_alleoni_guilherme_2003,  title={Biosolids and heavy metals in soils},  volume={60},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90162003000400029},  DOI={10.1590/S0103-90162003000400029},  number={4},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Silveira, Maria Lucia Azevedo and Alleoni, Luís Reynaldo Ferracciú and Guilherme, Luiz Roberto Guimarães},  year={2003},  month={Oct},  pages={793–806} }