1. Culshaw, B., Giblin, R.A., and Blakey, P.A.: Avalanche diode oscillators, (Taylor and Francis, London 1978),chap. 6, p. 74–76
2. Culshaw, B., Giblin, R.A., and Blakey, P.A.: chap. 13, p. 132–138 ibid.
3. Carroll, J.E.: Hot electron microwave generators, (Arnold, London 1970),chap. 9, p. 197–212