Canavilhas, J., Bittencourt, M. y de Andrade, M. 2019. Viral content on Facebook: a case study on the run-up to the Brazilian 2018 presidential elections. Brazilian journalism research. 15, 3 (dic. 2019), 562–589. DOI:https://doi.org/10.25200/BJR.v15n3.2019.1171.