Tokarnia, Carlos Hubinger, Jürgen Döbereiner, and Camillo F. C. Canella. 2014. “Acute Bracken (Pteridium Aquilinum (L) Kuhn) Poisoning of Cattle in Brazil”. Pesquisa Agropecuaria Brasileira 2 (1): 329-36. https://doi.org/10.1590/S1678-3921.pab1967.v2.17929.