@article{articlea8d46638,
title   = {Biosolids and heavy metals in soils},
author = {Silveira, M. L. A. and Alleoni, Luis Reynaldo Ferracciu and Guilherme, L. R. G.},
year = {2003},
doi = {10.1590/s0103-90162003000400029},
journal   = {Scientia Agricola}
}