MOORHEAD, S. The Digital Radio Concentrator System. Journal of Telecommunications and the Digital Economy, [S. l.], v. 7, n. 4, p. 65–88, 2019. DOI: 10.18080/jtde.v7n4.242. Disponível em: https://jtde.telsoc.org/index.php/jtde/article/view/242. Acesso em: 18 apr. 2021.