HOLMES, Jim. Vale Doug Campbell (1939–2023): A Tribute to a Quiet Achiever and his Contributions to Australian Telecommunications. Journal of Telecommunications and the Digital Economy, [S. l.], v. 12, n. 2, p. 139–150, 2024. DOI: 10.18080/jtde.v12n2.967. Disponível em: https://www.jtde.telsoc.org/index.php/jtde/article/view/967. Acesso em: 26 oct. 2025.