@article{bidone_laybauer_castilhos_maddock_2001,  title={Environmental risk increase due to heavy metal contamination caused by a copper mining activity in Southern Brazil},  volume={73},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652001000200011},  DOI={10.1590/S0001-37652001000200011},  number={2},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={BIDONE, EDISON D. and LAYBAUER, LUCIANO and CASTILHOS, ZULEICA C. and MADDOCK, JOHN L.},  year={2001},  month={Jun},  pages={277–286} }