Chiochetta, C. G., and M. Chiochetta. “Application of the Assimilation and Dissimilation (A-D) Test to Observe the Toxic Effect in Superficial Waters”. Ecotoxicology and Environmental Contamination, vol. 1, no. 2, Dec. 2006, pp. 97-101, doi:10.5132/jbse.2006.02.001.