Fenerich, F.L. et al. 2014. Seasonal fluctuations of gastrointestinal nematode egg counts of bovine in the region of Campinas, State of São Paulo, Brazil: occurrence and prevalence of the genera. Pesquisa Agropecuaria Brasileira. 22, 6 (Apr. 2014), 647–652. DOI:https://doi.org/10.1590/S1678-3921.pab1987.v22.14997.