1. A.S. Gilmour Jr., Microwave Tubes (Artech House, Boston, 1986)
2. A.S. Gilmour Jr., Principles of Traveling Wave Tubes (Artech House, Boston, 1994)
3. A.S. Gilmour Jr., Klystrons, Travelling Wave Tubes, Magnetrons, Crossed-Field Amplifiers, and Gyrotrons (Artech House, Boston, 2011)
4. J.J. Coupling, A pseudonym of J. R. Pierce, in Astounding Science Fiction (1946)
5. J.R. Pierce, Traveling wave tubes (Van Nostrand, New York, NY, USA, 1950)