Cruz, J. M., P. R. M. Lopes, R. N. Montagnolli, I. S. Tamada, N. M. M. G. Silva, and E. D. Bidoia. “Phytotoxicity of Soil Contaminated With Petroleum Derivatives and Biodiesel”. Ecotoxicology and Environmental Contamination, vol. 8, no. 1, June 2013, pp. 49-54, doi:10.5132/eec.2013.01.007.