Sobreira, R. G.; Heid-Furley, T.; Effigen, J. I.; Oliveira-Filho, A. C. de. Toxicological Evaluation of the Hexadecanoic Acid and β Sitosterol for Daphnia Similis Claus, 1876 (Cladoceran, Crustacean). Ecotoxicol. Environ. Contam. 2006, 1, 167-170.