Ramos, Cesar Itaqui, and Viviani Cecília Gutierres. “Populational Dynamics of Trichostrongylus Spp. and Cooperia Spp. In Calves on the Highlands of Santa Catarina”. Pesquisa Agropecuaria Brasileira, vol. 20, no. 11, Apr. 2014, pp. 1337-49, doi:10.1590/S1678-3921.pab1985.v20.16373.