MCCULLAGH, A.; CAELLI, W. Non-repudiation in the digital environment. First Monday, [S. l.], v. 5, n. 8, 2000. DOI: 10.5210/fm.v5i8.778. Disponível em: https://firstmonday.org/ojs/index.php/fm/article/view/778. Acesso em: 3 jul. 2022.