Hoepers, C., Barbosa, H. F., Steding-Jessen, K., & CGI.br. (2017). Fighting Internet spam in Brazil - Historical overview and reflections on combating spam and managing port 25, coordinated by the Brazilian Internet Steering Committee. Comitê Gestor da Internet no Brasil.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hoepers, Cristine, Henrique Faulhaber Barbosa, Klaus Steding-Jessen, και CGI.br. Fighting Internet Spam in Brazil - Historical Overview and Reflections on Combating Spam and Managing Port 25, Coordinated by the Brazilian Internet Steering Committee. Comitê Gestor da Internet no Brasil, 2017.
Παραπομπή σε μορφή MLA (9th εκδ.)Hoepers, Cristine, et al. Fighting Internet Spam in Brazil - Historical Overview and Reflections on Combating Spam and Managing Port 25, Coordinated by the Brazilian Internet Steering Committee. Comitê Gestor da Internet no Brasil, 2017.