1. V.L. Granatstein and I. Alexeff, eds., “High-power microwave sources”, Artech House, Boston, London (1987).
2. C.J. Edgcombe, ed., “Gyrotron oscillators—their principles and practice”, Taylor & Francis, London (1993).
3. M.V. Kartikeyan, E. Borie and M.K.A. Thumm, “Gyrotrons—High power microwave and millimeter wave technology”, Springer, Berlin (2004).
4. G. Nusinovich, “Introduction to the physics of gyrotrons”, The Johns Hopkins University Press, Baltimore and London (2004).
5. J. Benford, J. Swegle and E. Schamiloglu, “High-power microwave sources”, 2nd Ed., Taylor & Francis, New York, London (2007).