: 'Launch of Decca ship simulator', Radio and Electronic Engineer, 1976, 46, (10), p. 510-511, DOI: 10.1049/ree.1976.0076
IET Digital Library, https://digital-library.theiet.org/;jsessionid=d2k48ryko6mt.x-iet-live-01content/journals/10.1049/ree.1976.0076