Raya-Rodriguez, M. T., C. J. S. Ferreira, and J. C. F. Moreira. “Automotive Impact in Populations of Ctenomys Minutus in the Coastal Plain in Southern Brasil: Evaluation of Heavy Metal Contents and Quantification of Lipoperoxidation Levels”. Ecotoxicology and Environmental Contamination, vol. 1, no. 2, Dec. 2006, pp. 177-83, doi:10.5132/jbse.2006.02.017.