共 50 条
- [23] MXC. 2 - New Generation of Multiplex Equipment for Telegraph Lines. Technische Mitteilungen PTT (Post-, Telefon- und Telegrafenbetrieben), 1987, 65 (03): : 139 - 146
- [25] A method of transmitting the telegraph alphabet applicable for radio, land lines, and submarine cables JOURNAL OF THE FRANKLIN INSTITUTE, 1923, 195 : 633 - 639
- [28] BROADCASTING AND PUBLIC - SUMMERS,RE AND SUMMERS,HB JOURNALISM QUARTERLY, 1966, 43 (04): : 794 - 796