Cesar, R. G., Coelho, M. B., Alvaro, T. T., Colonese, J. P., Castilhos, Z. C., Egler, S. G., Bidone, E. D., Polivanov, H. and Alexandre, N. Z. (2013) “Terrestrial disposal of coal mining residues: acid drainage, acute ecotoxicity and bioavailability of heavy metals”, Ecotoxicology and Environmental Contamination, 8(2), pp. 17–22. doi: 10.5132/eec.2013.02.003.