Furlong, John, et al. “Cattle Parasitosis in the Zona Da Mata Region of Minas Gerais, Brazil II.Seasonal Incidence of Lung Nematodes”. Pesquisa Agropecuaria Brasileira, vol. 20, no. 12, Apr. 2014, pp. 1409-13, doi:10.1590/S1678-3921.pab1985.v20.16412.