1957 · R.B. R.-Shersby-Harvie, L.B. Mullett, et al. · The proceedings of the Institution of Electrical Engineers. Part B, Radio and electronic engineering, including communication engineering · 23
1957 · R.B. R.-Shersby-Harvie, L.B. Mullett, et al. · The proceedings of the Institution of Electrical Engineers. Part B, Radio and electronic engineering, including communication engineering