MOORHEAD, S. Revisiting the Universal Service Obligation Scheme. Journal of Telecommunications and the Digital Economy, [S. l.], v. 9, n. 3, p. 194–215, 2021. DOI: 10.18080/jtde.v9n3.451. Disponível em: https://jtde.telsoc.org/index.php/jtde/article/view/451. Acesso em: 27 nov. 2021.