MOHAMMED, Emir A. The growth of internet telephony: Legal and policy issues. First Monday, [S. l.], v. 4, n. 6, 1999. DOI: 10.5210/fm.v4i6.676. Disponível em: https://firstmonday.org/ojs/index.php/fm/article/view/676. Acesso em: 16 apr. 2024.