Serra, Deborah do Espírito Santo, and Maria T. Soto-Sanfiel. “When the User Becomes a Publicist: Motivations for Ewom on Facebook”. ReMark - Revista Brasileira De Marketing, vol. 13, no. 1, Apr. 2014, pp. 1-16, doi:10.5585/remark.v13i1.2584.