DE PERCY, Michael. Echoes of 1935, Signals of 2025: A 90-Year Journey. Journal of Telecommunications and the Digital Economy, [S. l.], v. 13, n. 1, p. iv-vii, 2025. DOI: 10.18080/jtde.v13n1.1240. Disponível em: https://mail.jtde.telsoc.org/index.php/jtde/article/view/1240. Acesso em: 27 jun. 2025.